iDataLink Maestro HRR-HO1 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

20062008
ACURA CSX
WITH NAV
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, FACTORY AMPLIFIER, 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.
+
OR
PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-HO1 Installation Harness
PROGRAMMED FIRMWARE: HO1-RR-AS
HEAD UNIT
ADAPTER READY

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITH NAV 20062008
Automotive Data Solutions Inc. © 2023 2
HEAD UNIT ADAPTER:
ACC-HU-PIO1, SON1, KEN1, KEN2, ALP1
Configuring the RR2’s Programmable
Outputs
Maestro RR2 Programmable
Outputs Guide
Installation, product information, vehicle
specific videos. VIDEO HELP
Last flash information, steering control
configuration, vehicle information. VERIFY FLASH
Software to program module. WEBLINK
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.
NEED HELP?
1 866 427-2999
[email protected]
ADDITIONAL INFORMATION AND
ACCESSORIES

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITH NAV 20062008
Automotive Data Solutions Inc. © 2023 3
STEP 1
Remove the factory radio
If using head unit adapter (sold separately), connect HRR-
HO1 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-
HO1 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
HO1 T-harness and match the wire functions.
Note: only connect purple/white wire to radio reverse input
or module damage will occur.
STEP 2
Assemble the HRR-HO1 T-harness as shown in the wiring
diagram:
• Connect the 4-pin white and green connectors to E adapter
cable.
• Connect the 3-pin white to C adapter cable.
• Connect the 2-pin white to F cable. Connect the ORANGE/
RED NAV ONLY wire to the GREEN wire in pin 4 of the
factory harness.
• Connect HRR-HO1 T-harness to the factory radio harness.
STEP 3
• Connect HRR-HO1 2-pin black connector to black
connector of OBDII extension harness.
• Plug the OBDII connector into the OBDII of the vehicle,
under driver dash.
STEP 4
• Plug the harnesses into the aftermarket radio.
• Plug the RCA cables into the aftermarket radio outputs.
• Connect either the blue/yellow wire (Kenwood/JVC) or the
3.5mm to the steering control input of the radio.
STEP 5
• Connect all the harnesses to the Maestro RR module then
test your installation.
1
INSTALLATION INSTRUCTIONS P1 /1

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITH NAV 20062008
Automotive Data Solutions Inc. © 2023 4
5
4
321
N.C.
N.C.
AMP TURNONAMP TURNON
POWER ANTPOWER ANT
CC
GG
1
BB
FF
BLUETOOTHBLUETOOTH
NAV ONLYNAV ONLY
EE
DD
3
4
16
3
2
3
20
22
18
18
10
3
3
17
2
20
4
5
AUDIO
CABLE
DATA
CABLE
WIRE SIDE
VIEW
GREEN
STEP 3 OBDII CONNECTOR
STEP 1
WIRES FROM
VEHICLE
HRR-HO1 T-HARNESS
FACTORY RADIO HARNESS
STEP 4
STEP 5
MAESTRO RR MODULE
CONNECT TO
AFTERMARKET RADIO
WIRING DIAGRAM
NOT REQUIRED
PIONEER RADIO: ENSURE THAT NOTHING
IS PLUGGED IN W/R PORT.
GREEN
WHITE - LF SPEAKER (+)
WHITE/BLACK - LF SPEAKER (-)
GRAY - RF SPEAKER (+)
GRAY/BLACK - RF SPEAKER (-)
GREEN - LR SPEAKER (+)
GREEN/BLACK - LR SPEAKER (-)
PURPLE/BLACK - RR SPEAKER (-)
YELLOW - 12V (+)
BLACK - GROUND
RED - ACCESSORY (+)
BLUE/WHITE - AMP. TURN ON (+)
PURPLE - RR SPEAKER (+)
ORANGE - ILLUMINATION (+)
PURPLE/WHITE - REVERSE LIGHT (+) **
LTGREEN - E-BRAKE (-)
PINK - VEHICLE SPEED
SEE RADIO WIRE
REFERENCE CHART
FOR RADIO WIRE
COLORS
** ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
HEAD UNIT ADAPTER
SOLD SEPARATELY
BLUE - POWER ANTENNA
MAIN
HARNESS
OR
LF OUT
RF OUT
LR OUT
RR OUT
STEP 2
UNPLUG
WHITE
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
STEERING WHEEL
CONTROL CABLE
OR

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITH NAV 20062008
Automotive Data Solutions Inc. © 2023 5
RADIO WIRE REFERENCE CHART
HO1 T-harness
Wire Description Polarity Wire Color on Maestro
T-Harness
Wire Color on Alpine
cable
Wire Color on Kenwood/
JVC 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 Blue/Yellow
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 Blue/Yellow
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.
Other brands, refer to aftermarker radio guide.

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITH NAV 20062008
Automotive Data Solutions Inc. © 2023 6
MODULE DIAGNOSTICS
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).

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITH NAV 20062008
Automotive Data Solutions Inc. © 2023 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.
The radio does not turn ON. If installing a modular radio and it is not turning on, ensure the screen is
secured and any trim pieces on the radio have been installed fully.
Test red and yellow wires for DC voltage at radio using a multimeter. Contact
support if no voltage on red or yellow.
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]
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.

20062011
ACURA CSX
WITHOUT NAV
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, FACTORY AMPLIFIER, 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.
+
OR
PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-HO1 Installation Harness
PROGRAMMED FIRMWARE: HO1-RR-AS
HEAD UNIT
ADAPTER READY

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITHOUT NAV 20062011
Automotive Data Solutions Inc. © 2023 2
HEAD UNIT ADAPTER:
ACC-HU-PIO1, SON1, KEN1, KEN2, ALP1
Configuring the RR2’s Programmable
Outputs
Maestro RR2 Programmable
Outputs Guide
Installation, product information, vehicle
specific videos. VIDEO HELP
Last flash information, steering control
configuration, vehicle information. VERIFY FLASH
Software to program module. WEBLINK
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.
NEED HELP?
1 866 427-2999
[email protected]
ADDITIONAL INFORMATION AND
ACCESSORIES

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITHOUT NAV 20062011
Automotive Data Solutions Inc. © 2023 3
BEFORE INSTALLING
• To determine if the vehicle is equipped with a factory
amplifier, look at the rear deck. If there is a subwoofer
present in the rear deck, the vehicle has an amplifier. If
there are only two speakers in the rear deck, it is NOT
amplified.
STEP 1
Remove the factory radio
If using head unit adapter (sold separately), connect HRR-
HO1 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-
HO1 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
HO1 T-harness and match the wire functions.
Note: only connect purple/white wire to radio reverse input
or module damage will occur.
STEP 2
If the vehicle DOES NOT have a factory amplifier:
• Plug in the 4-pin white connectors (A harness).
• Plug in the 4-pin green connectors (A harness).
If the vehicle DOES have a factory amplifier:
• Unplug the HRR-HO1 4-pin white and 4-pin green
connectors.
• Connect the 4-pin white and green connectors to E adapter
cable.
STEP 3
Assemble the HRR-HO1 T-harness as shown in the wiring
diagram:
• Connect the 3-pin white to B adapter cable.
• Connect HRR-HO1 T-harness to the factory radio harness.
STEP 4
• Connect HRR-HO1 2-pin black connector to black
connector of OBDII extension harness.
• Plug the OBDII connector into the OBDII of the vehicle,
under driver dash.
STEP 5
• Plug the harnesses into the aftermarket radio.
• Plug the RCA cables into the aftermarket radio outputs
(with factory amplifier only).
• Connect either the blue/yellow wire (Kenwood/JVC) or the
3.5mm to the steering control input of the radio.
STEP 6
• Connect all the harnesses to the Maestro RR module then
test your installation.
4
INSTALLATION INSTRUCTIONS P1 /1

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITHOUT NAV 20062011
Automotive Data Solutions Inc. © 2023 4
N.C.
N.C.
AMP TURNONAMP TURNON
POWER ANTPOWER ANT
BB
4
DD
CC FF
BLUETOOTHBLUETOOTH
NAV ONLYNAV ONLY
EE
GG
3
3
2
20
22 2
18
18
10
3
3
17
5
20
4
4
4
16
2
3
4
STEP 3
STEP 1
WIRES FROM
VEHICLE
HRR-HO1 T-HARNESS
FACTORY RADIO HARNESS
STEP 5
STEP 6
MAESTRO RR MODULE
CONNECT TO
AFTERMARKET RADIO
WIRING DIAGRAM
NOT REQUIRED
PIONEER RADIO: ENSURE THAT NOTHING
IS PLUGGED IN W/R PORT.
GREEN
GREEN
WHITE - LF SPEAKER (+)
WHITE/BLACK - LF SPEAKER (-)
GRAY - RF SPEAKER (+)
GRAY/BLACK - RF SPEAKER (-)
GREEN - LR SPEAKER (+)
GREEN/BLACK - LR SPEAKER (-)
PURPLE/BLACK - RR SPEAKER (-)
YELLOW - 12V (+)
BLACK - GROUND
RED - ACCESSORY (+)
BLUE/WHITE - AMP. TURN ON (+)
PURPLE - RR SPEAKER (+)
ORANGE - ILLUMINATION (+)
PURPLE/WHITE - REVERSE LIGHT (+) **
LTGREEN - E-BRAKE (-)
PINK - VEHICLE SPEED
SEE RADIO WIRE
REFERENCE CHART
FOR RADIO WIRE
COLORS
** ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
HEAD UNIT ADAPTER
SOLD SEPARATELY
BLUE - POWER ANTENNA
MAIN
HARNESS
OR
OR
LF OUT
RF OUT
LR OUT
RR OUT
STEP 2 STEP 2
WITHOUT OEM
AMPLIFIER
WITH OEM AMPLIFIER
UNPLUG
WHITE
WHITE
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
STEP 4 OBDII CONNECTOR
OR
STEERING WHEEL
CONTROL CABLE
AUDIO
CABLE
DATA
CABLE

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITHOUT NAV 20062011
Automotive Data Solutions Inc. © 2023 5
RADIO WIRE REFERENCE CHART
HO1 T-harness
Wire Description Polarity Wire Color on Maestro
T-Harness
Wire Color on Alpine
cable
Wire Color on Kenwood/
JVC 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 Blue/Yellow
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 Blue/Yellow
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.
Other brands, refer to aftermarker radio guide.

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITHOUT NAV 20062011
Automotive Data Solutions Inc. © 2023 6
MODULE DIAGNOSTICS
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).

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
ACURA CSX WITHOUT NAV 20062011
Automotive Data Solutions Inc. © 2023 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.
The radio does not turn ON. If installing a modular radio and it is not turning on, ensure the screen is
secured and any trim pieces on the radio have been installed fully.
Test red and yellow wires for DC voltage at radio using a multimeter. Contact
support if no voltage on red or yellow.
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]
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.

20072009
HONDA CRV
WITH NAV
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, FACTORY AMPLIFIER, 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.
+
OR
PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-HO1 Installation Harness
PROGRAMMED FIRMWARE: HO1-RR-AS
HEAD UNIT
ADAPTER READY

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
HONDA CRV WITH NAV 20072009
Automotive Data Solutions Inc. © 2023 2
HEAD UNIT ADAPTER:
ACC-HU-PIO1, SON1, KEN1, KEN2, ALP1
Configuring the RR2’s Programmable
Outputs
Maestro RR2 Programmable
Outputs Guide
Installation, product information, vehicle
specific videos. VIDEO HELP
Last flash information, steering control
configuration, vehicle information. VERIFY FLASH
Software to program module. WEBLINK
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.
NEED HELP?
1 866 427-2999
[email protected]
ADDITIONAL INFORMATION AND
ACCESSORIES

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
HONDA CRV WITH NAV 20072009
Automotive Data Solutions Inc. © 2023 3
STEP 1
Remove the factory radio
If using head unit adapter (sold separately), connect HRR-
HO1 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-
HO1 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
HO1 T-harness and match the wire functions.
Note: only connect purple/white wire to radio reverse input
or module damage will occur.
STEP 2
Assemble the HRR-HO1 T-harness as shown in the wiring
diagram:
• Connect the 4-pin white and green connectors to E adapter
cable.
• Connect the subwoofer D harness to the vehicle (if
equipped).
• Connect the 3-pin white to C adapter cable.
• Connect the 2-pin white to F cable. Connect the ORANGE/
RED NAV ONLY wire to the GREEN wire in pin 4 of the
factory harness.
• Connect HRR-HO1 T-harness to the factory radio harness.
STEP 3
• Connect the PINK/RED BLUETOOTH wire to the BLUE wire
in pin 2 at the Bluetooth module, located below the radio, in
the center of the dash.
STEP 4
• Connect HRR-HO1 2-pin black connector to black
connector of OBDII extension harness.
• Plug the OBDII connector into the OBDII of the vehicle,
under driver dash.
STEP 5
• Plug the harnesses into the aftermarket radio.
• Plug the RCA cables into the aftermarket radio outputs.
• Connect either the blue/yellow wire (Kenwood/JVC) or the
3.5mm to the steering control input of the radio.
STEP 6
• Connect all the harnesses to the Maestro RR module then
test your installation.
2
INSTALLATION INSTRUCTIONS P1 /1

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
HONDA CRV WITH NAV 20072009
Automotive Data Solutions Inc. © 2023 4
5
4
321
N.C.
AMP TURNONAMP TURNON
POWER ANTPOWER ANT
CC
GG
2
DD
BB
FF
BLUETOOTHBLUETOOTH
NAV ONLYNAV ONLY
EE
SUB
3 4 5 6
12
17 18 19 20
7 8
21 2215 16
11 12 13 149 10
23 24 25 26 27 28
16
3
2
3
2
20
22
18
18
10
3
3
17
5
2
20
4
3
4
CONNECT IF EQUIPPED WITH SUBWOOFER
WIRE SIDE
VIEW
GREEN
STEP 4
STEP 3
OBDII CONNECTOR
STEP 1
WIRES FROM
VEHICLE
HRR-HO1 T-HARNESS
FACTORY RADIO HARNESS
STEP 5
STEP 6
MAESTRO RR MODULE
CONNECT TO
AFTERMARKET RADIO
WIRING DIAGRAM
NOT REQUIRED
PIONEER RADIO: ENSURE THAT NOTHING
IS PLUGGED IN W/R PORT.
GREEN
WHITE - LF SPEAKER (+)
WHITE/BLACK - LF SPEAKER (-)
GRAY - RF SPEAKER (+)
GRAY/BLACK - RF SPEAKER (-)
GREEN - LR SPEAKER (+)
GREEN/BLACK - LR SPEAKER (-)
PURPLE/BLACK - RR SPEAKER (-)
YELLOW - 12V (+)
BLACK - GROUND
RED - ACCESSORY (+)
BLUE/WHITE - AMP. TURN ON (+)
PURPLE - RR SPEAKER (+)
ORANGE - ILLUMINATION (+)
PURPLE/WHITE - REVERSE LIGHT (+) **
LTGREEN - E-BRAKE (-)
PINK - VEHICLE SPEED
SEE RADIO WIRE
REFERENCE CHART
FOR RADIO WIRE
COLORS
** ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
HEAD UNIT ADAPTER
SOLD SEPARATELY
BLUE - POWER ANTENNA
MAIN
HARNESS
OR
LF OUT
RF OUT
LR OUT
RR OUT
STEP 2
UNPLUG
WHITE
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
BLUETOOTH UNIT UNDER RADIO
INSULATE
WIRE
*IF EQUIPPED
OR
AUDIO
CABLE
DATA
CABLE
STEERING WHEEL
CONTROL CABLE

HO1-RR-AS-(HRR-HO1)-EN maestro.idatalink.com
HONDA CRV WITH NAV 20072009
Automotive Data Solutions Inc. © 2023 5
RADIO WIRE REFERENCE CHART
HO1 T-harness
Wire Description Polarity Wire Color on Maestro
T-Harness
Wire Color on Alpine
cable
Wire Color on Kenwood/
JVC 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 Blue/Yellow
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 Blue/Yellow
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.
Other brands, refer to aftermarker radio guide.