User Manual

GMOS-LAN-10

Connections to be made

From the 16-pin harness with stripped leads to the aftermarket radio:

• Connect the Red wire to the accessory wire.

Note: If installing an ASWC-1 (sold separately), there will be an accessory wire

there to connect as well.

• If the vehicle is equipped with a factory amplifier (excluding Bose), connect the

Blue/White wire to the amp turn on wire. This wire must be connected to hear

sound from the factory amplifier.

• If the aftermarket radio has an illumination wire, connect the Orange/White

wire to it.

• If the aftermarket radio has a mute wire, connect the Brown wire to it. If the

mute wire is not connected, the radio will turn off when OnStar is activated.

• 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

From the GMOS-LAN-10 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 speaker output.

• 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.

• If retaining the factory backup camera, connect the Yellow RCA jack to the

reverse camera input.

12-pin pre-wired ASWC-1 harness:

• This harness is to be used along with the optional ASWC-1 (not included) to

retain steering wheel audio controls. If the ASWC-1 is not being used, disregard

this harness. If it will be used, please refer to the ASWC-1 instructions for radio

connections and programming.

Note: Disregard the harness that comes with the ASWC-1.

• Connect the Red wire to the accessory wire.

Note:

The relay attached to the GMOS-LAN-10 harness is only for audible turn signal

clicks. No extra steps are required to retain this feature, so leave the relay as-is.