iDataLink maestro Rr User manual

NOTICE: Automotive Data Solutions Inc. (ADS) recommends having this installation performed by a certified technician. Logos and trademarks used here in
are the properties of their respective owners.
WARNING
Pressing the printer icon or “quick printing” this document will print
all of the guides in this compilation.
Open the Bookmarks menu and find your vehicle OR scroll
down until you find the install guide for your vehicle.
Print only the pages for your vehicle using the advanced
options in the Print menu.
Install your Maestro RR according to the guide for your vehicle.
HOW TO USE THIS INSTALL GUIDE
1
2
3
SELECT VEHICLE
PRINT PAGES NEEDED

2020-2021
ToyoTa 4 RunneR
WiTh JBL
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, BACKUP CAMERA, AND MORE!
NOTICE: Automotive Data Solutions Inc. (ADS) recommends having this installation performed by a certified technician. Logos and trademarks used here
in are the properties of their respective owners.
PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-TO3 Installation Harness
PROGRAMMED FIRMWARE
ADS-RR(SR)-TOY03-AS
ADDITIONAL RESOURCES
Maestro RR2 Programmable Outputs Guide
OR
OPTIONAL ACCESSORIES

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiTh JBL 2020-2021
Automotive Data Solutions Inc. © 2022 2
NEED HELP?
WELCOME
Congratulations on the purchase
of your iDatalink Maestro RR Radio
replacement solution. You are
now a few simple steps away from
enjoying your new car radio with
enhanced features.
Before starting your installation,
please ensure that your iDatalink
Maestro module is programmed
with the correct firmware for your
vehicle and that you carefully review
the install guide.
Please note that Maestro RR will
only retain functionalities that
were originally available in the
vehicle.
1 866 427-2999
maestro.idatalink.com/support
www.12voltdata.com/forum
[email protected]
TABLE OF CONTENTS
Installation Instructions 3
Wiring Diagram 4
Radio Wire Reference Chart 5
Module Diagnostics 6
Troubleshooting Table 7

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiTh JBL 2020-2021
Automotive Data Solutions Inc. © 2022 3
STEP 1
• Remove the factory radio.
• Unplug 4 pin white speaker connector and connect RCA
adapter.
If using head unit adapter (sold separately), connect HRR-
TO3 harness to adapter and skip to step 2.
• Unbox the aftermarket radio and locate its main harness.
• Cut and remove the black 20 pin connector from the HRR-
TO3 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
TO3 T-harness and match the wire functions.
Note: Rear speaker wire connections are not required.
Note: only connect purple/white wire to radio reverse input or
module damage will occur.
STEP 2
• Connect the factory harness to the HRR-TO3 T-harness.
STEP 3
• Plug the harnesses into the aftermarket radio.
• Connect the backup camera RCA cable into the
aftermarket radio (if equipped).
• Plug the steering wheel control cable into the aftermarket
radio (blue/yellow wire Kenwood/JVC only) OR (3.5mm jack
to the radio’s steering wheel input).
STEP 4
• Connect all the harnesses to the Maestro RR module then
test your installation.
CAMERA CONTROLS
REAR CAMERA ONLY with controls on factory radio screen:
Camera controls (with vehicle in reverse)
MODE - Normal/wide view toggle
SEEK UP - Change guidelines
SEEK DOWN - Mute/unmute rear cross traffic alert
PANORAMIC/360 CAMERA:
Note: If equipped with Bird’s Eye camera, be sure to set the
factory radio “AUTO ON” for the radio to change from rear/
front camera automatically and allow the vehicle camera
button to switch 360 degree views.
Camera controls (with vehicle in reverse)
MODE - Change view
SEEK UP - Zoom in/out
SEEK DOWN - Change guidelines
PANORAMIC/360, WITH OFFROAD CAMERA ACTIVATED
(select vehicles/optional feature — activate 4LO and press
the camera button to access):
Camera controls (with camera active)
MODE - Change view
SEEK UP - Auto button on Offroad view
KENWOOD/JVC/SONY RADIOS - touch left or right side of
screen
Note: For Sony radios with OSD Controllable camera: When
the vehicle is equipped with the bird’s eye view camera
system, plug the camera into Camera 1 on the radio. This is
the only camera input that allows camera control through
the touchscreen
1
INSTALLATION INSTRUCTIONS P1 /1

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ToyoTa 4 RunneR WiTh JBL 2020-2021
Automotive Data Solutions Inc. © 2022 4
NC
MICMIC
1
BACKUP CAMBACKUP CAM
POWER ANTPOWER ANT
NC
NC
AMP TURN ONAMP TURN ON
WHITE
WHITE/BLACK
GRAY
GRAY/BLACK
4 PIN WHITE
UNPLUG
LF OUT
RF OUT
WIRING DIAGRAM with JBL
2-PIN
FACTORY RADIO HARNESS
STEP 2
28-PIN
30-PIN
10-PIN
BLUE/WHITE - AMP. TURN ON (+)
WHITE - LF SPEAKER (+)
WHITE/BLACK - LF SPEAKER (-)
GRAY - RF SPEAKER (+)
GRAY/BLACK - RF SPEAKER (-)
MAIN
HARNESS
RCA CABLES
HHR-TO3 T-HARNESS
STEP 3
WIRES FROM
VEHICLE
CONNECT TO
AFTERMARKET RADIO
STEP 4
YELLOW - 12V (+)
BLACK - GROUND
RED - ACCESSORY (+)
STEP 1
GREEN - LR SPEAKER (+)
GREEN/BLACK - LR SPEAKER (-)
PURPLE/BLACK - RR SPEAKER (-)
PURPLE - RR SPEAKER (+)
NOT REQUIRED
MAESTRO RR MODULE
PIONEER RADIO: ENSURE
THAT NOTHING IS PLUGGED
IN W/R PORT.
YELLOW/BLACK - FOOT BRAKE
ORANGE - ILLUMINATION (+)
PURPLE/WHITE - REVERSE LIGHT (+) *
PINK - VEHICLE SPEED
LTGREEN - E-BRAKE (-)
SEE
AFTERMARKET
RADIO GUIDE
FOR RADIO
WIRE COLORS
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
OR
HEAD UNIT ADAPTER
SOLD SEPARATELY
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
18 PIN
10 PIN
10 PIN
3 PIN
* ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
AUDIO
CABLE
DATA
CABLE
STEERING WHEEL
CONTROL CABLE
STEERING WHEEL
CONTROL CABLE
4-PIN

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ToyoTa 4 RunneR WiTh JBL 2020-2021
Automotive Data Solutions Inc. © 2022 5
RADIO WIRE REFERENCE CHART
HRR-TO3 T-harness
Wire Description Polarity Wire Color on Maestro
T-Harness
Wire Color on Alpine
cable
Wire Color on Kenwood
cable
Wire Color on Pioneer
cable
Wire Color on Sony
cable
Illumination (+) Orange N/A Orange/White Orange/White Orange
Reverse Light* (+) Purple/White Orange/White Purple/White Purple/White Purple/White
E-Brake (-) Lt Green Yellow/Blue Lt Green Lt Green Lt Green
VSS (vehicle speed sensor) (DATA) Pink Green/White Pink Pink N/A
Power Antenna (+) Blue Blue Blue Blue/White Blue or Blue/White
ACC-HU-ALP1
Wire Description
Polarity Wire Color on Adapter Alpine Radio
VSS (vehicle speed sensor) (DATA) Green/White Green/White
ACC-HU-KEN1
Wire Description
Polarity Wire Color on Adapter Kenwood Radio
CAM (+) Green/Red Refer to camera/radio
manual
CAM (-) Green/White Refer to camera/radio
manual
Steering Wheel Controls (DATA) Blue/Yellow Connect if no iDatalink
4-pin port on radio
ACC-HU-KEN2
Wire Description
Polarity Wire Color on Adapter Kenwood Radio
E-Brake (-) LtGreen LtGreen
Reverse Light* (+) Purple/White Purple/White
Steering Wheel Controls (DATA) Blue/Yellow Connect if no iDatalink
4-pin port on radio
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.

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Automotive Data Solutions Inc. © 2022 6
MODULE DIAGNOSTICS
VIDEO HELP Installation, product information, vehicle specific videos.
VERIFY FLASH Last flash information, steering control configuration, vehicle information.
WEBLINK Software to program module.
LED 1 LED 2
LED 1
PROGRAMMING BUTTON
LED 1
Module/Firmware
status
LED 2 (RR2)
Bluetooth activity
LED STATUS DIAGNOSTIC
• or •RED or GREEN
flashing
LED flashes 1 or more times, either red or green, when a steering wheel
button is pressed : normal operation.
•1 RED flash Module has no firmware.
Flash module using Weblink Desktop and log in. Do NOT use DEMO MODE.
•1 GREEN flash After radio boots up : Normal operation.
•3 GREEN flashes Bluetooth is activated.
Turns off after one minute: Normal operation.
• • OFF Normal operation (inactive).

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiTh JBL 2020-2021
Automotive Data Solutions Inc. © 2022 7
TROUBLESHOOTING TABLE
PROBLEM SOLUTION
Steering wheel controls do not work but LED on the Maestro does blink when
steering wheel buttons are pressed.
Ensure the blue 4-pin steering wheel control cable is connected between the
Maestro and the radio. The radio will use either the 3.5mm jack OR the blue/yellow
wire, not both.
Connect the 3.5mm jack from the Maestro blue 4-pin cable to the radio’s 3.5mm
port (labeled steering, remote, or wheel). If no such port exists, wire the blue/yellow
to blue/yellow (Kenwood/JVC) or to the radio’s Key 1 wire (brands not listed/other)
and secure the 3.5mm jack. It will not be used.
Verify the buttons are set up in the flash. If any button is set to “none” for “press
once”, it will do nothing. “Hold” column can be left as none and the “press once”
function will operate with one press and when holding the button.
Refer to radio’s owner’s manual to verify if the radio has this function:
• JVC/Kenwood : Steering Wheel Control (ON/OFF): choose ON
• Nakamichi : if model is listed, ensure PAC mode is on. If “other”, learn the
buttons in the radio steering wheel menu.
• Sony : Steering Wheel Control (Custom/Preset): choose Preset. If phone buttons
do not operate properly, flash the module as Pioneer – 2009 and newer with BT.
Then select “custom” instead of “preset” and learn the buttons in the radio menu.
• Other brands – radio should have a steering wheel menu to learn the buttons. You
may have to select type A/B/C/1/2/3 and try learning again if buttons are not saving.
Refer to radio manufacturer’s tech support for further advice if not learning properly.
Radio does not turn on. Test red and yellow wires for DC voltage at radio using a multimeter. Contact
support if no voltage on red or yellow.
The light on the Maestro is flashing RED ONCE. There is no firmware on the module; flash the RR module.
There is no image from the backup camera, just a black screen. Ensure the yellow backup camera RCA cable is connected to the proper input on the
radio (i.e. Brown "BC IN" on Pioneer or yellow backup/reverse video input on other
brands).
Radio does not switch to reverse cam input when shifting to reverse Verify the purple/white wire from the Maestro is connected to the radio's reverse
input trigger (purple/white on most, Alpine may be orange/white - read radio
manual to confirm).
If the purple/white is connected: Use a multimeter to verify you have 12v DC
when in reverse, 0v in any other position. If so, check radio settings for "Reverse
Interrupt" or similar, and ensure it is enabled/ON.
If it's the opposite, 12v in park/neutral/drive, but 0v in reverse, the module output
has been damaged and will need replaced. Make sure ONLY the radio's reverse
trigger is connected to the Maestro purple/white wire.
If 0v in any gear, test pin 28 of the vehicle's 28 pin connector for reverse. Color
varies but identify the wire that reads 12v in reverse only and splice into it and
connect it, instead of the Maestro purple/white wire, to the radio's reverse trigger
input. (Maestro purple/white wire is not used).
MAESTRO RR RESET PROCEDURE:
Turn the key to the OFF position, then disconnect all connectors from the module.
Press and hold the module’s programming button and connect all the connectors back to the module. Wait, the module’s LED will flash RED rapidly (this may take up to 10
seconds).
Release the programming button. Wait, the LED will turn solid GREEN for 2 seconds to show the reset was successful.
TECHNICAL ASSISTANCE
Phone: [phone]
Email: maestr[email protected]
Web: maestro.idatalink.com/support add www.12voltdata.com/forum/
IMPORTANT: To ensure proper operation, the aftermarket radio needs to have the latest firmware from the manufacturer. Please visit the radio manufacturer’s
website and look for any updates pertaining to your radio.

2020-2021
ToyoTa 4 RunneR
WiThouT JBL
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, BACKUP CAMERA, AND MORE!
NOTICE: Automotive Data Solutions Inc. (ADS) recommends having this installation performed by a certified technician. Logos and trademarks used here
in are the properties of their respective owners.
PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-TO3 Installation Harness
PROGRAMMED FIRMWARE
ADS-RR(SR)-TOY03-AS
ADDITIONAL RESOURCES
Maestro RR2 Programmable Outputs Guide
OR
OPTIONAL ACCESSORIES

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiThouT JBL 2020-2021
Automotive Data Solutions Inc. © 2022 2
NEED HELP?
WELCOME
Congratulations on the purchase
of your iDatalink Maestro RR Radio
replacement solution. You are
now a few simple steps away from
enjoying your new car radio with
enhanced features.
Before starting your installation,
please ensure that your iDatalink
Maestro module is programmed
with the correct firmware for your
vehicle and that you carefully review
the install guide.
Please note that Maestro RR will
only retain functionalities that
were originally available in the
vehicle.
1 866 427-2999
maestro.idatalink.com/support
www.12voltdata.com/forum
[email protected]
TABLE OF CONTENTS
Installation Instructions 3
Wiring Diagram 4
Radio Wire Reference Chart 5
Module Diagnostics 6
Troubleshooting Table 7

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiThouT JBL 2020-2021
Automotive Data Solutions Inc. © 2022 3
STEP 1
• Remove the factory radio.
If using head unit adapter (sold separately), connect HRR-
TO3 harness to adapter and skip to step 2.
• Unbox the aftermarket radio and locate its main harness.
• Cut and remove the black 20 pin connector from the HRR-
TO3 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
TO3 T-harness and match the wire functions.
Note: only connect purple/white wire to radio reverse input or
module damage will occur.
STEP 2
• Connect the factory harness to the HRR-TO3 T-harness.
STEP 3
• Plug the harnesses into the aftermarket radio.
• Connect the backup camera RCA cable into the
aftermarket radio (if equipped).
• Plug the RCA cables into the aftermarket radio outputs.
• Plug the steering wheel control cable into the aftermarket
radio (blue/yellow wire Kenwood/JVC only) OR (3.5mm jack
to the radio’s steering wheel input).
STEP 4
• Connect all the harnesses to the Maestro RR module then
test your installation.
CAMERA CONTROLS
REAR CAMERA ONLY with controls on factory radio screen:
Camera controls (with vehicle in reverse)
MODE - Normal/wide view toggle
SEEK UP - Change guidelines
SEEK DOWN - Mute/unmute rear cross traffic alert
PANORAMIC/360 CAMERA:
Note: If equipped with Bird’s Eye camera, be sure to set the
factory radio “AUTO ON” for the radio to change from rear/
front camera automatically and allow the vehicle camera
button to switch 360 degree views.
Camera controls (with vehicle in reverse)
MODE - Change view
SEEK UP - Zoom in/out
SEEK DOWN - Change guidelines
PANORAMIC/360, WITH OFFROAD CAMERA ACTIVATED
(select vehicles/optional feature — activate 4LO and press
the camera button to access):
Camera controls (with camera active)
MODE - Change view
SEEK UP - Auto button on Offroad view
KENWOOD/JVC/SONY RADIOS - touch left or right side of
screen
Note: For Sony radios with OSD Controllable camera: When
the vehicle is equipped with the bird’s eye view camera
system, plug the camera into Camera 1 on the radio. This is
the only camera input that allows camera control through
the touchscreen
2
INSTALLATION INSTRUCTIONS P1 /1

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiThouT JBL 2020-2021
Automotive Data Solutions Inc. © 2022 4
NC
MICMIC
2
BACKUP CAMBACKUP CAM
POWER ANTPOWER ANT
NC
NC
AMP TURN ONAMP TURN ON
DATA
CABLE
WIRING DIAGRAM without JBL
2-PIN
FACTORY RADIO HARNESS
STEP 2
28-PIN
30-PIN
10-PIN
BLUE/WHITE - AMP. TURN ON (+)
WHITE - LF SPEAKER (+)
WHITE/BLACK - LF SPEAKER (-)
GRAY - RF SPEAKER (+)
GRAY/BLACK - RF SPEAKER (-)
MAIN
HARNESS
RCA CABLES
HHR-TO3 T-HARNESS
STEP 3
WIRES FROM
VEHICLE
CONNECT TO
AFTERMARKET RADIO
STEP 4
YELLOW - 12V (+)
BLACK - GROUND
RED - ACCESSORY (+)
STEP 1
WHITE
WHITE/BLACK
GRAY
GRAY/BLACK
GREEN - LR SPEAKER (+)
GREEN/BLACK - LR SPEAKER (-)
PURPLE/BLACK - RR SPEAKER (-)
PURPLE - RR SPEAKER (+)
NOT REQUIRED
MAESTRO RR MODULE
PIONEER RADIO: ENSURE
THAT NOTHING IS PLUGGED
IN W/R PORT.
YELLOW/BLACK - FOOT BRAKE
ORANGE - ILLUMINATION (+)
PURPLE/WHITE - REVERSE LIGHT (+) *
PINK - VEHICLE SPEED
LTGREEN - E-BRAKE (-)
SEE
AFTERMARKET
RADIO GUIDE
FOR RADIO
WIRE COLORS
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
OR
HEAD UNIT ADAPTER
SOLD SEPARATELY
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
4 PIN WHITE
18 PIN
10 PIN
10 PIN
3 PIN
* ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
AUDIO
CABLE
STEERING WHEEL
CONTROL CABLE
STEERING WHEEL
CONTROL CABLE
4-PIN

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiThouT JBL 2020-2021
Automotive Data Solutions Inc. © 2022 5
RADIO WIRE REFERENCE CHART
HRR-TO3 T-harness
Wire Description Polarity Wire Color on Maestro
T-Harness
Wire Color on Alpine
cable
Wire Color on Kenwood
cable
Wire Color on Pioneer
cable
Wire Color on Sony
cable
Illumination (+) Orange N/A Orange/White Orange/White Orange
Reverse Light* (+) Purple/White Orange/White Purple/White Purple/White Purple/White
E-Brake (-) Lt Green Yellow/Blue Lt Green Lt Green Lt Green
VSS (vehicle speed sensor) (DATA) Pink Green/White Pink Pink N/A
Power Antenna (+) Blue Blue Blue Blue/White Blue or Blue/White
ACC-HU-ALP1
Wire Description
Polarity Wire Color on Adapter Alpine Radio
VSS (vehicle speed sensor) (DATA) Green/White Green/White
ACC-HU-KEN1
Wire Description
Polarity Wire Color on Adapter Kenwood Radio
CAM (+) Green/Red Refer to camera/radio
manual
CAM (-) Green/White Refer to camera/radio
manual
Steering Wheel Controls (DATA) Blue/Yellow Connect if no iDatalink
4-pin port on radio
ACC-HU-KEN2
Wire Description
Polarity Wire Color on Adapter Kenwood Radio
E-Brake (-) LtGreen LtGreen
Reverse Light* (+) Purple/White Purple/White
Steering Wheel Controls (DATA) Blue/Yellow Connect if no iDatalink
4-pin port on radio
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiThouT JBL 2020-2021
Automotive Data Solutions Inc. © 2022 6
MODULE DIAGNOSTICS
VIDEO HELP Installation, product information, vehicle specific videos.
VERIFY FLASH Last flash information, steering control configuration, vehicle information.
WEBLINK Software to program module.
LED 1 LED 2
LED 1
PROGRAMMING BUTTON
LED 1
Module/Firmware
status
LED 2 (RR2)
Bluetooth activity
LED STATUS DIAGNOSTIC
• or •RED or GREEN
flashing
LED flashes 1 or more times, either red or green, when a steering wheel
button is pressed : normal operation.
•1 RED flash Module has no firmware.
Flash module using Weblink Desktop and log in. Do NOT use DEMO MODE.
•1 GREEN flash After radio boots up : Normal operation.
•3 GREEN flashes Bluetooth is activated.
Turns off after one minute: Normal operation.
• • OFF Normal operation (inactive).

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa 4 RunneR WiThouT JBL 2020-2021
Automotive Data Solutions Inc. © 2022 7
TROUBLESHOOTING TABLE
PROBLEM SOLUTION
Steering wheel controls do not work but LED on the Maestro does blink when
steering wheel buttons are pressed.
Ensure the blue 4-pin steering wheel control cable is connected between the
Maestro and the radio. The radio will use either the 3.5mm jack OR the blue/yellow
wire, not both.
Connect the 3.5mm jack from the Maestro blue 4-pin cable to the radio’s 3.5mm
port (labeled steering, remote, or wheel). If no such port exists, wire the blue/yellow
to blue/yellow (Kenwood/JVC) or to the radio’s Key 1 wire (brands not listed/other)
and secure the 3.5mm jack. It will not be used.
Verify the buttons are set up in the flash. If any button is set to “none” for “press
once”, it will do nothing. “Hold” column can be left as none and the “press once”
function will operate with one press and when holding the button.
Refer to radio’s owner’s manual to verify if the radio has this function:
• JVC/Kenwood : Steering Wheel Control (ON/OFF): choose ON
• Nakamichi : if model is listed, ensure PAC mode is on. If “other”, learn the
buttons in the radio steering wheel menu.
• Sony : Steering Wheel Control (Custom/Preset): choose Preset. If phone buttons
do not operate properly, flash the module as Pioneer – 2009 and newer with BT.
Then select “custom” instead of “preset” and learn the buttons in the radio menu.
• Other brands – radio should have a steering wheel menu to learn the buttons. You
may have to select type A/B/C/1/2/3 and try learning again if buttons are not saving.
Refer to radio manufacturer’s tech support for further advice if not learning properly.
Radio does not turn on. Test red and yellow wires for DC voltage at radio using a multimeter. Contact
support if no voltage on red or yellow.
The light on the Maestro is flashing RED ONCE. There is no firmware on the module; flash the RR module.
There is no image from the backup camera, just a black screen. Ensure the yellow backup camera RCA cable is connected to the proper input on the
radio (i.e. Brown "BC IN" on Pioneer or yellow backup/reverse video input on other
brands).
Radio does not switch to reverse cam input when shifting to reverse Verify the purple/white wire from the Maestro is connected to the radio's reverse
input trigger (purple/white on most, Alpine may be orange/white - read radio
manual to confirm).
If the purple/white is connected: Use a multimeter to verify you have 12v DC
when in reverse, 0v in any other position. If so, check radio settings for "Reverse
Interrupt" or similar, and ensure it is enabled/ON.
If it's the opposite, 12v in park/neutral/drive, but 0v in reverse, the module output
has been damaged and will need replaced. Make sure ONLY the radio's reverse
trigger is connected to the Maestro purple/white wire.
If 0v in any gear, test pin 28 of the vehicle's 28 pin connector for reverse. Color
varies but identify the wire that reads 12v in reverse only and splice into it and
connect it, instead of the Maestro purple/white wire, to the radio's reverse trigger
input. (Maestro purple/white wire is not used).
MAESTRO RR RESET PROCEDURE:
Turn the key to the OFF position, then disconnect all connectors from the module.
Press and hold the module’s programming button and connect all the connectors back to the module. Wait, the module’s LED will flash RED rapidly (this may take up to 10
seconds).
Release the programming button. Wait, the LED will turn solid GREEN for 2 seconds to show the reset was successful.
TECHNICAL ASSISTANCE
Phone: [phone]
Email: maestr[email protected]
Web: maestro.idatalink.com/support add www.12voltdata.com/forum/
IMPORTANT: To ensure proper operation, the aftermarket radio needs to have the latest firmware from the manufacturer. Please visit the radio manufacturer’s
website and look for any updates pertaining to your radio.

2019-2020
ToyoTa avaLon
WiTh JBL
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, BACKUP CAMERA, AND MORE!
NOTICE: Automotive Data Solutions Inc. (ADS) recommends having this installation performed by a certified technician. Logos and trademarks used here
in are the properties of their respective owners.
PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-TO3 Installation Harness
PROGRAMMED FIRMWARE
ADS-RR(SR)-TOY03-AS
ADDITIONAL RESOURCES
Maestro RR2 Programmable Outputs Guide
OR
OPTIONAL ACCESSORIES

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa avaLon WiTh JBL 2019-2020
Automotive Data Solutions Inc. © 2022 2
NEED HELP?
WELCOME
Congratulations on the purchase
of your iDatalink Maestro RR Radio
replacement solution. You are
now a few simple steps away from
enjoying your new car radio with
enhanced features.
Before starting your installation,
please ensure that your iDatalink
Maestro module is programmed
with the correct firmware for your
vehicle and that you carefully review
the install guide.
Please note that Maestro RR will
only retain functionalities that
were originally available in the
vehicle.
1 866 427-2999
maestro.idatalink.com/support
www.12voltdata.com/forum
[email protected]
TABLE OF CONTENTS
Installation Instructions 3
Wiring Diagram 4
Radio Wire Reference Chart 5
Module Diagnostics 6
Troubleshooting Table 7

ADS-RR(SR)-TOY03h-AS-IG-EN maestro.idatalink.com
ToyoTa avaLon WiTh JBL 2019-2020
Automotive Data Solutions Inc. © 2022 3
STEP 1
• Remove the factory radio.
• Unplug 4 pin white speaker connector and connect RCA
adapter.
If using head unit adapter (sold separately), connect HRR-
TO3 harness to adapter and skip to step 2.
• Unbox the aftermarket radio and locate its main harness.
• Cut and remove the black 20 pin connector from the HRR-
TO3 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
TO3 T-harness and match the wire functions.
Note: Rear speaker wire connections are not required.
Note: only connect purple/white wire to radio reverse input or
module damage will occur.
STEP 2
• Connect the factory harness to the HRR-TO3 T-harness.
STEP 3
• Plug the harnesses into the aftermarket radio.
• Connect the backup camera RCA cable into the
aftermarket radio (if equipped).
• Plug the steering wheel control cable into the aftermarket
radio (blue/yellow wire Kenwood/JVC only) OR (3.5mm jack
to the radio’s steering wheel input).
STEP 4
• Connect all the harnesses to the Maestro RR module then
test your installation.
CAMERA CONTROLS
REAR CAMERA ONLY with controls on factory radio screen:
Camera controls (with vehicle in reverse)
MODE - Normal/wide view toggle
SEEK UP - Change guidelines
SEEK DOWN - Mute/unmute rear cross traffic alert
PANORAMIC/360 CAMERA:
Note: If equipped with Bird’s Eye camera, be sure to set the
factory radio “AUTO ON” for the radio to change from rear/
front camera automatically and allow the vehicle camera
button to switch 360 degree views.
Camera controls (with vehicle in reverse)
MODE - Change view
SEEK UP - Zoom in/out
SEEK DOWN - Change guidelines
PANORAMIC/360, WITH OFFROAD CAMERA ACTIVATED
(select vehicles/optional feature — activate 4LO and press
the camera button to access):
Camera controls (with camera active)
MODE - Change view
SEEK UP - Auto button on Offroad view
KENWOOD/JVC/SONY RADIOS - touch left or right side of
screen
Note: For Sony radios with OSD Controllable camera: When
the vehicle is equipped with the bird’s eye view camera
system, plug the camera into Camera 1 on the radio. This is
the only camera input that allows camera control through
the touchscreen
1
INSTALLATION INSTRUCTIONS P1 /1

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NC
MICMIC
1
BACKUP CAMBACKUP CAM
POWER ANTPOWER ANT
NC
NC
AMP TURN ONAMP TURN ON
WHITE
WHITE/BLACK
GRAY
GRAY/BLACK
4 PIN WHITE
UNPLUG
LF OUT
RF OUT
WIRING DIAGRAM with JBL
2-PIN
FACTORY RADIO HARNESS
STEP 2
28-PIN
30-PIN
10-PIN
BLUE/WHITE - AMP. TURN ON (+)
WHITE - LF SPEAKER (+)
WHITE/BLACK - LF SPEAKER (-)
GRAY - RF SPEAKER (+)
GRAY/BLACK - RF SPEAKER (-)
MAIN
HARNESS
RCA CABLES
HHR-TO3 T-HARNESS
STEP 3
WIRES FROM
VEHICLE
CONNECT TO
AFTERMARKET RADIO
STEP 4
YELLOW - 12V (+)
BLACK - GROUND
RED - ACCESSORY (+)
STEP 1
GREEN - LR SPEAKER (+)
GREEN/BLACK - LR SPEAKER (-)
PURPLE/BLACK - RR SPEAKER (-)
PURPLE - RR SPEAKER (+)
NOT REQUIRED
MAESTRO RR MODULE
PIONEER RADIO: ENSURE
THAT NOTHING IS PLUGGED
IN W/R PORT.
YELLOW/BLACK - FOOT BRAKE
ORANGE - ILLUMINATION (+)
PURPLE/WHITE - REVERSE LIGHT (+) *
PINK - VEHICLE SPEED
LTGREEN - E-BRAKE (-)
SEE
AFTERMARKET
RADIO GUIDE
FOR RADIO
WIRE COLORS
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
OR
HEAD UNIT ADAPTER
SOLD SEPARATELY
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
18 PIN
10 PIN
10 PIN
3 PIN
* ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
AUDIO
CABLE
DATA
CABLE
STEERING WHEEL
CONTROL CABLE
STEERING WHEEL
CONTROL CABLE
4-PIN

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RADIO WIRE REFERENCE CHART
HRR-TO3 T-harness
Wire Description Polarity Wire Color on Maestro
T-Harness
Wire Color on Alpine
cable
Wire Color on Kenwood
cable
Wire Color on Pioneer
cable
Wire Color on Sony
cable
Illumination (+) Orange N/A Orange/White Orange/White Orange
Reverse Light* (+) Purple/White Orange/White Purple/White Purple/White Purple/White
E-Brake (-) Lt Green Yellow/Blue Lt Green Lt Green Lt Green
VSS (vehicle speed sensor) (DATA) Pink Green/White Pink Pink N/A
Power Antenna (+) Blue Blue Blue Blue/White Blue or Blue/White
ACC-HU-ALP1
Wire Description
Polarity Wire Color on Adapter Alpine Radio
VSS (vehicle speed sensor) (DATA) Green/White Green/White
ACC-HU-KEN1
Wire Description
Polarity Wire Color on Adapter Kenwood Radio
CAM (+) Green/Red Refer to camera/radio
manual
CAM (-) Green/White Refer to camera/radio
manual
Steering Wheel Controls (DATA) Blue/Yellow Connect if no iDatalink
4-pin port on radio
ACC-HU-KEN2
Wire Description
Polarity Wire Color on Adapter Kenwood Radio
E-Brake (-) LtGreen LtGreen
Reverse Light* (+) Purple/White Purple/White
Steering Wheel Controls (DATA) Blue/Yellow Connect if no iDatalink
4-pin port on radio
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.