iDataLink ADS-MRR2 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

PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-MA2 Installation Harness
PROGRAMMED FIRMWARE
ADS-RR(SR)-MA1-DS
ADDITIONAL RESOURCES
Maestro RR2 Programmable Outputs Guide
ELECTRONICS
Click here for:
Radar Installation Guides
20142017
MAZDA 3
TOUCHSCREEN
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, VEHICLE SETTINGS, 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
ANTENNA ADAPTER (MAY BE REQUIRED)
HEAD UNIT ADAPTER:
ACC-HU-PIO1, SON1, KEN1, KEN2, ALP1
OPTIONAL ACCESSORIES

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 2
MAZDA 3 TOUCHSCREEN 20142017
WELCOME
NEED HELP?
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.
TABLE OF CONTENTS
Installation Instructions 3
Wiring Diagram 4
Radio Wire Reference Chart 5
Module Diagnostics 6
Troubleshooting Table 7
1 866 427-2999
maestro.idatalink.com/support
www.12voltdata.com/forum
[email protected]

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 3
MAZDA 3 TOUCHSCREEN 20142017
STEP 1
• Disconnect the negative battery terminal (not doing so
may blow the 7.5A audio fuse 2 under hood during the
installation of the radio).
• Remove the factory radio
If using head unit adapter (sold separately), connect HRR-
MA2 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-
MA2 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
MA2 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 extension harness to HRR-MA2 main harness
8-pin black connector.
If the vehicle DOES have a factory amplifier:
• Plug in the extension harness to 8-pin black connector of
RCA cable.
• Connect the RCAs to the radio outputs: white/left front,
gray/right front, green/left rear, purple/right rear.
• Route the extension harness to the radio tuner in the
passenger kick panel.
STEP 3
• Connect both the 18-pin and 28-pin connectors of HRR-
MA2 T-harness to the factory radio harness (at CMU,
behind/below display).
STEP 4
• Connect the 24-pin adapter (red connector) to the factory
radio tuner in the passenger kick panel.
• Connect the adapter’s 8-pin black connector to the
extension harness.
• Plug the blue POWER ANT terminal to amplified antenna
adapter (if required).
STEP 5
• Plug the harnesses into the aftermarket radio.
• Connect the backup cam cable into the aftermarket radio
(if equipped).
• Plug the antenna adapter (if required).
• Plug the Data cable to the data port of the aftermarket
radio.
Note: On Pioneer radio, ensure that there is nothing plugged
into the W/R port.
STEP 6
• Connect all the harnesses to the Maestro RR module.
• Reconnect the negative battery terminal then test your
installation.
INSTALLATION INSTRUCTIONS P1 /1
1

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 4
MAZDA 3 TOUCHSCREEN 20142017
1
BACKUP CAMBACKUP CAM
AMP TURN ONAMP TURN ON
POWER ANTPOWER ANT
AUDIO
CABLE
*
NC
MICMIC
N.C. AMP TURN ONAMP TURN ON
POWER ANTPOWER ANT
3
4
4
3
10
18
18
18
28
20
8
8
8
8
8
20
8
24
8
MAESTRO RR MODULE
STEP 1
MAIN
HARNESS
HRR-MA2 T-HARNESS
STEP 5
STEP 6
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
WIRING DIAGRAM
STEP 2
CMU
TUNER
STEP 3
STEP 4
SEE RADIO WIRE
CHART
FOR RADIO WIRE
COLORS
DATA
CABLE
CONNECT TO
AFTERMARKET RADIO
NOT REQUIRED
STEERING WHEEL
CONTROL CABLE
PIONEER RADIO: ENSURE
THAT NOTHING IS PLUGGED
IN W/R PORT.
* ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
TO ANTENNA
ADAPTER IF REQUIRED
WITH OEM AMP
WITHOUT OEM AMP
OR
HEAD UNIT ADAPTER
SOLD SEPARATELY
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
LF OUT
RF OUT
LR OUT
RR OUT
CONNECT IF EQUIPPED *
PASSENGER KICK PANEL
BEHIND/BELOW RADIO DISPLAY

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 5
MAZDA 3 TOUCHSCREEN 20142017
RADIO WIRE REFERENCE CHART
MA2 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
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 n/a
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 n/a
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 6
MAZDA 3 TOUCHSCREEN 20142017
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.
•2 RED flashes Problem detected. Consult troubleshooting table.
•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)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 7
MAZDA 3 TOUCHSCREEN 20142017
TROUBLESHOOTING TABLE
PROBLEM SOLUTION
Gauges do not work, radio shows OBD2 Error 1 or Error 2. If anything is connected to the OBD2 or CAN wires of vehicle (programmer,
throttle controller, insurance tracker, etc.) try unplugging it to see if gauges
work. If gauges work without it installed, call tech support for options.
Reset the RR.
CX-5 and Mazda3
No audio after installing new radio. Factory radio no longer has sound.
Check 7.5 amp “AUDIO 2” fuse located under the hood.
The light on the Maestro is flashing RED ONCE. There is no firmware on the module. Flash the RR module using Weblink
Desktop and log in. Do NOT use DEMO MODE.
The light on the Maestro is blinking RED TWICE and the radio IS turning on. Ensure the 4-pin data cable is connected between the radio and the RR, and
that it is plugged into the black port on the Maestro RR. The red and blue
ports on the RR should be empty.
Make sure the correct radio model and serial number were entered during
the flash. Verify the radio’s serial number entered during the flash matches
what is listed on the radio screen. This can be found in the settings of the
radio, listed as Device Id, Device Number, or Serial Number.
The light on the Maestro is blinking RED TWICE but the radio is NOT turning
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. Not
installing these fully will prevent radio from powering up and show a 2x red
error as well.
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]
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.

PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-MA2 Installation Harness
PROGRAMMED FIRMWARE
ADS-RR(SR)-MA1-DS
ADDITIONAL RESOURCES
Maestro RR2 Programmable Outputs Guide
ELECTRONICS
Click here for:
Radar Installation Guides
2018
MAZDA 3
TOUCHSCREEN WITH AMPLIFIER
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, VEHICLE SETTINGS, 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
ANTENNA ADAPTER (MAY BE REQUIRED)
HEAD UNIT ADAPTER:
ACC-HU-PIO1, SON1, KEN1, KEN2, ALP1
OPTIONAL ACCESSORIES

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 2
MAZDA 3 TOUCHSCREEN WITH AMPLIFIER 2018
WELCOME
NEED HELP?
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.
TABLE OF CONTENTS
Installation Instructions 3
Wiring Diagram 4
Radio Wire Reference Chart 5
Module Diagnostics 6
Troubleshooting Table 7
1 866 427-2999
maestro.idatalink.com/support
www.12voltdata.com/forum
[email protected]

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 3
MAZDA 3 TOUCHSCREEN WITH AMPLIFIER 2018
STEP 1
• Disconnect the negative battery terminal (not doing so
may blow the 7.5A audio fuse 2 under hood during the
installation of the radio).
• Remove the factory radio
If using head unit adapter (sold separately), connect HRR-
MA2 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-
MA2 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
MA2 T-harness and match the wire functions.
Note: only connect purple/white wire to radio reverse input
or module damage will occur.
STEP 2
• Plug in the extension harness to 8-pin black connector of
RCA cable.
• Connect the RCAs to the radio outputs: white/left front,
gray/right front, green/left rear, purple/right rear.
• Route the extension harness to the radio tuner in the
passenger kick panel.
STEP 3
• Connect both the 18-pin and 28-pin connectors of HRR-
MA2 T-harness to the factory radio harness (at CMU,
behind/below display).
STEP 4
• Connect the 24-pin adapter (red connector) to the factory
radio tuner in the passenger kick panel.
• Connect the adapter’s 8-pin black connector to the
extension harness.
• Connect the adapter’s AMP TURN ON blue/white wire to
tuner’s white wire at pin 6 of 32-pin white connector.
• Plug the blue POWER ANT terminal to amplified antenna
adapter (if required).
STEP 5
• Plug the harnesses into the aftermarket radio.
• Connect the backup cam cable into the aftermarket radio
(if equipped).
• Plug the antenna adapter (if required).
• Plug the Data cable to the data port of the aftermarket
radio.
Note: On Pioneer radio, ensure that there is nothing plugged
into the W/R port.
STEP 6
• Connect all the harnesses to the Maestro RR module.
• Reconnect the negative battery terminal then test your
installation.
INSTALLATION INSTRUCTIONS P1 /1
3

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 4
MAZDA 3 TOUCHSCREEN WITH AMPLIFIER 2018
3
BACKUP CAMBACKUP CAM
AMP TURN ONAMP TURN ON
POWER ANTPOWER ANT
AUDIO
CABLE
*
NC
NC
MICMIC
AMP TURN ONAMP TURN ON
POWER ANTPOWER ANT
10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
1234 5 6789
3
4
4
3
10
18
18
18
28
20
8
8
8
8
20
8
24
8
MAESTRO RR MODULE
STEP 1
MAIN
HARNESS
HRR-MA2 T-HARNESS
STEP 5
STEP 6
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
WIRING DIAGRAM
STEP 2
CMU
TUNER
STEP 3
STEP 4
SEE RADIO WIRE
CHART
FOR RADIO WIRE
COLORS
DATA
CABLE
CONNECT TO
AFTERMARKET RADIO
NOT REQUIRED
STEERING WHEEL
CONTROL CABLE
PIONEER RADIO: ENSURE
THAT NOTHING IS PLUGGED
IN W/R PORT.
* ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
TO ANTENNA
ADAPTER IF REQUIRED
OR
HEAD UNIT ADAPTER
SOLD SEPARATELY
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
LF OUT
RF OUT
LR OUT
RR OUT
CONNECT IF EQUIPPED *
PASSENGER KICK PANEL
BEHIND/BELOW RADIO DISPLAY
WHITE - REMOTE (12V)

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 5
MAZDA 3 TOUCHSCREEN WITH AMPLIFIER 2018
RADIO WIRE REFERENCE CHART
MA2 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
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 n/a
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 n/a
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 6
MAZDA 3 TOUCHSCREEN WITH AMPLIFIER 2018
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.
•2 RED flashes Problem detected. Consult troubleshooting table.
•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)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 7
MAZDA 3 TOUCHSCREEN WITH AMPLIFIER 2018
TROUBLESHOOTING TABLE
PROBLEM SOLUTION
Gauges do not work, radio shows OBD2 Error 1 or Error 2. If anything is connected to the OBD2 or CAN wires of vehicle (programmer,
throttle controller, insurance tracker, etc.) try unplugging it to see if gauges
work. If gauges work without it installed, call tech support for options.
Reset the RR.
CX-5 and Mazda3
No audio after installing new radio. Factory radio no longer has sound.
Check 7.5 amp “AUDIO 2” fuse located under the hood.
The light on the Maestro is flashing RED ONCE. There is no firmware on the module. Flash the RR module using Weblink
Desktop and log in. Do NOT use DEMO MODE.
The light on the Maestro is blinking RED TWICE and the radio IS turning on. Ensure the 4-pin data cable is connected between the radio and the RR, and
that it is plugged into the black port on the Maestro RR. The red and blue
ports on the RR should be empty.
Make sure the correct radio model and serial number were entered during
the flash. Verify the radio’s serial number entered during the flash matches
what is listed on the radio screen. This can be found in the settings of the
radio, listed as Device Id, Device Number, or Serial Number.
The light on the Maestro is blinking RED TWICE but the radio is NOT turning
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. Not
installing these fully will prevent radio from powering up and show a 2x red
error as well.
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]
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.

PRODUCTS REQUIRED
iDatalink Maestro RR or RR2 Radio Replacement Interface
iDatalink Maestro HRR-MA2 Installation Harness
PROGRAMMED FIRMWARE
ADS-RR(SR)-MA1-DS
ADDITIONAL RESOURCES
Maestro RR2 Programmable Outputs Guide
ELECTRONICS
Click here for:
Radar Installation Guides
2018
MAZDA 3
TOUCHSCREEN WITHOUT AMPLIFIER
INSTALL GUIDE
RETAINS STEERING WHEEL CONTROLS, VEHICLE SETTINGS, 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
ANTENNA ADAPTER (MAY BE REQUIRED)
HEAD UNIT ADAPTER:
ACC-HU-PIO1, SON1, KEN1, KEN2, ALP1
OPTIONAL ACCESSORIES

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 2
MAZDA 3 TOUCHSCREEN WITHOUT AMPLIFIER 2018
WELCOME
NEED HELP?
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.
TABLE OF CONTENTS
Installation Instructions 3
Wiring Diagram 4
Radio Wire Reference Chart 5
Module Diagnostics 6
Troubleshooting Table 7
1 866 427-2999
maestro.idatalink.com/support
www.12voltdata.com/forum
[email protected]

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 3
MAZDA 3 TOUCHSCREEN WITHOUT AMPLIFIER 2018
STEP 1
• Disconnect the negative battery terminal (not doing so
may blow the 7.5A audio fuse 2 under hood during the
installation of the radio).
• Remove the factory radio
If using head unit adapter (sold separately), connect HRR-
MA2 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-
MA2 T-harness and connect the wires, shown in the wiring
diagram, from aftermarket radio main harness to the HRR-
MA2 T-harness and match the wire functions.
Note: only connect purple/white wire to radio reverse input
or module damage will occur.
STEP 2
• Plug in the extension harness to HRR-MA2 main harness
8-pin black connector.
• Route the extension harness to the radio tuner in the
passenger kick panel.
STEP 3
• Connect both the 18-pin and 28-pin connectors of HRR-
MA2 T-harness to the factory radio harness (at CMU,
behind/below display).
STEP 4
• Connect the 24-pin adapter (red connector) to the factory
radio tuner in the passenger kick panel.
• Connect the adapter’s 8-pin black connector to the
extension harness.
• Plug the blue POWER ANT terminal to amplified antenna
adapter (if required).
STEP 5
• Plug the harnesses into the aftermarket radio.
• Connect the backup cam cable into the aftermarket radio
(if equipped).
• Plug the antenna adapter (if required).
• Plug the Data cable to the data port of the aftermarket
radio.
Note: On Pioneer radio, ensure that there is nothing plugged
into the W/R port.
STEP 6
• Connect all the harnesses to the Maestro RR module.
• Reconnect the negative battery terminal then test your
installation.
INSTALLATION INSTRUCTIONS P1 /1
2

ADS-RR(SR)-MA2H-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2023 4
MAZDA 3 TOUCHSCREEN WITHOUT AMPLIFIER 2018
2
BACKUP CAMBACKUP CAM
AMP TURN ONAMP TURN ON
POWER ANTPOWER ANT
AUDIO
CABLE
*
NC
MICMIC
N.C. AMP TURN ONAMP TURN ON
POWER ANTPOWER ANT
3
4
4
3
10
18
18
18
28
20
8
8
8
8
20
8
24
8
MAESTRO RR MODULE
STEP 1
MAIN
HARNESS
HRR-MA2 T-HARNESS
STEP 5
STEP 6
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
WIRING DIAGRAM
STEP 2 CMU
TUNER
STEP 3
STEP 4
SEE RADIO WIRE
CHART
FOR RADIO WIRE
COLORS
DATA
CABLE
CONNECT TO
AFTERMARKET RADIO
NOT REQUIRED STEERING WHEEL
CONTROL CABLE
PIONEER RADIO: ENSURE
THAT NOTHING IS PLUGGED
IN W/R PORT.
* ONLY CONNECT TO RADIO REVERSE INPUT
OR MODULE DAMAGE WILL OCCUR
TO ANTENNA
ADAPTER IF REQUIRED
OR
HEAD UNIT ADAPTER
SOLD SEPARATELY
IF WIRES ARE PRESENT ON
ADAPTER: SEE RADIO
REFERENCE CHART
IF NOT USING A MAESTRO HEAD UNIT ADAPTER:
CUT AND DISCARD CONNECTOR
CONNECT IF EQUIPPED *
PASSENGER KICK PANEL
BEHIND/BELOW RADIO DISPLAY

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MAZDA 3 TOUCHSCREEN WITHOUT AMPLIFIER 2018
RADIO WIRE REFERENCE CHART
MA2 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
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 n/a
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 n/a
Head unit adapter wiring (optional accessory, sold separately)
* Reverse light wire: Only connect to radio or module damage will occur.