3
REV. 1/5/2018 INSTAX-GMLAN29-SWC
CONNECTIONS TO BE MADE
Attention!
This interface will work with models that are either non-amplified, analog amplified,
or digital 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
without
an amplifier:
From the 16-pin harness with stripped leads to the aftermarket radio:
• Connect the
Red
wire to the accessory wire.
Note:
If installing an AX-LCD (sold separately), there will be an accessory wire there to
connect as well.
• 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 (5) wires, they will not be used in this application:
Blue/White
,
Green
,
Green/Black
,
Purple
and
Purple/Black
.
From the AX-GMLAN29-SWC harness to the aftermarket radio:
• Connect the
Black
wire to the ground wire.
• Connect the
Yellow
wire to the battery wire.
• Cut off the resistors from the
Green
,
Green/Black
,
Purple
, and
Purple/Black
wires below the
heat shrink.
• 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.
• Ensure the (2) 4-pin Molex connectors are connected together.
Note:
The 4-pin to 4-pin resistor pad harness will not be used in this application.
• The
Black/Yellow
wire is used for OnStar level adjustment for models that do not come
equipped with steering wheel controls. Refer to the OnStar level Adjustment section for
further instructions.
• 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).
• Connect the
Red
wire to the accessory wire.
Note:
The relay attached to the AX-GMLAN29-SWC 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
