(b) 12-pin harness to the aftermarket radio:
• If the Blue/Pink wire is populated on the factory side, connect this wire to the
speed sense wire (V.S.S.) (if applicable).
• Connect the Red and White RCA jacks to the audio AUX-IN jacks (if so equipped).
Note: This will only be required if you care to retain factory satellite radio.
(c) 22-pin harness to the aftermarket radio:
• The Black/Yellow wire is used for OnStar level adjustment for models that do
not come equipped with steering wheel controls. See OnStar Level Adjustment
for further instructions.
• The DIN jack is for use with the optional AX-LCD (sold separately). Refer to Extra
Features for more information.
• Connect the Red wire to the accessory wire.
• The 3.5mm jack is to be used to retain steering wheel controls.
• For the radios listed below, connect the included female 3.5mm adapter
with Brown and Brown/White wires, onto the male 3.5mm SWC jack of
the BX-GM4. Any remaining wires, tape off and disregard:
• Eclipse: Connect the steering wheel control wire, normally
Brown, to the Brown/White wire of the adapter. Then connect
the remaining steering wheel control wire, normally
Brown/White, to the Brown wire of the adapter.
BX-GM4
Connections to be made
4
• Metra OE: Connect the steering wheel control Key 1 wire (Gray)
to the Brown wire.
• Kenwood or select JVC with a steering wheel control wire:
Connect the Blue/Yellow wire to the Brown wire.
Note: If your Kenwood radio auto detects as a JVC, manually set
the radio type to Kenwood. See the instructions under changing
radio type.
• XITE: Connect the steering wheel control SWC-2 wire from the
radio to the Brown wire.
• Parrot Asteroid Smart or Tablet: Connect the 3.5mm jack into
the AX-SWC-PARROT (sold separately), and then connect the
4-pin connector from the AX-SWC-PARROT into the radio.
Note: The radio must be updated to rev. 2.1.4 or higher
software.
• For all other radios: Connect the 3.5mm jack of the BX-GM4 into the
jack on the aftermarket radio designated for an external steering wheel
control interface. Please refer to the aftermarket radios manual if in
doubt as to where the 3.5mm jack goes into.