For Models With A Factory Amplifier - Axxess BX-GM8 Guia Del Usuario

Attention! This interface will work with models that are either factory amplified, or non-
amplified. Please follow the instructions carefully for your model vehicle. Failure to do
so will result in either no sound, or low sound. If you are unsure if your vehicle is factory
amplified or not, please contact your local dealership.

For models with a factory amplifier:

From the 16-pin harness with stripped leads to the aftermarket radio:
• Connect the Blue/White wire to the amp turn on wire. This wire must be
connected to hear sound from the factory amplifier.
• Connect the Gray wire to the right front positive speaker output.
• Connect the Gray/Black wire to the right front negative speaker output.
• Connect the White wire to the left front positive speaker output.
• Connect the White/Black wire to the left front negative speaker output.
The following (3) wires are only for multimedia/navigation radios that require these wires.
• Connect the Blue/Pink wire to the VSS/speed sense wire.
• Connect the Green/Purple wire to the reverse wire.
• Connect the Light Green wire to the parking brake wire
• Tape off and disregard the following (4) wires, they will not be used in this
application: Green, Green/Black, Purple, Purple/Black.
BX-GM8
Connections to be made
3
From the BX-GM8 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the battery wire.
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative output.
• Disconnect the (2) 4-pin Molex connectors and then attach the 4-pin to 4-pin
resistor pad harness.
• The Black/Yellow wire is used for OnStar level adjustment for models that do
not come equipped with steering wheel controls. See the OnStar level Adjustment
section for further instructions.
• Disregard the Pink wire with a red bullet connector, it will not be used in this
application.
• If the AUX-IN jack in the dash is desired to be used, connect the Red and White RCA
jacks to the audio AUX-IN jacks of the aftermarket radio.
• The DIN jack is to be used with the optional AX-LCD (sold separately) to retain the
personalization features of the vehicle.
Note: The relay attached to the BX-GM8 harness is only for audible turn signal
clicks. No extra steps are required to retain this feature, so leave the relay as-is.
Continue to 3.5mm jack steering wheel control retention