Owner's Manual

ADS-RR(SR)-GMS03-DS-IG-EN maestro.idatalink.comAutomotive Data Solutions Inc. © 2019
4
GMC Sierra 2500 & 3500 With 4.2" and 8" radioS 2015-2019
1A
BACKUP CAMBACKUP CAM
J1
J3
J4
J5
J2
STEP 6
OBDII CONNECTOR
STEP 5
STEERING WHEEL HARNESS
STEP 1
STEP 3
STEP 2
STEP 7
STEP 8
MAESTRO RR MODULE
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 (+)
MAIN
HARNESS
DATA
CABLE
AUDIO
CABLE
PURPLE - RR SPEAKER (+)
CONNECT TO
AFTERMARKET RADIO
GM3 T-HARNESS
WIRES FROM
VEHICLE
RCA CABLES
BEHIND GLOVE BOX
PURPLE/WHITE - REVERSE LIGHT (+)
LTGREEN - E-BRAKE (-)
YELLOW/BLACK - FOOT BRAKE
PINK - VEHICLE SPEED
SEE RADIO
WIRE REFERENCE
CHART FOR
RADIO WIRE
COLORS
FACTORY RADIO HARNESS
STEP 4
CLIMATE CONTROLS HARNESS
HUMAN MACHINE INTERFACE MODULE HARNESS
SPEAKER
WIRING DIAGRAM without an Amplifier
ORANGE - ILLUMINATION (+)
STEERING WHEEL
CONTROL CABLE
NOT REQUIRED
RED
NC
WHITE
BLACK
NC
PIONEER RADIO: ENSURE THAT NOTHING
IS PLUGGED IN W/R PORT.