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Automotive Data Solutions Inc. © 2023
5
Mazda CX-3 TouChsCreen 2020
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.
