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AX-GMCL2

®

Connections to be made

Applications

From the AX-GMCL2 harness to the aftermarket radio:

• Connect the 

Black

 wire to the ground wire.

• Connect the 

Yellow

 wire to the battery wire.

• Connect the 

Red

 wire to the accessory wire.

• Connect the 

Blue/White

 wire to the amplifier turn on wire.

• Tape off and disregard the 

Orange/White

 wire, it will not be used in this application

.

• If the aftermarket radio has an illumination wire, connect the 

Orange

 wire to it.

Note:

 

There are (2) illumination wires. If the 

Orange

 wire on the 24-pin harness

is populated on the factory side, use that wire instead.

• 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.

• 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 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.

BUICK

Century

2004-2005

LaCrosse

2005-2009

Rainier * 

2004-2007

Regal

2004

Rendezvous 2002-2007

Terraza

2005-2007

CADILLAC

Escalade, Escalade ESV & EXT † 

2003-2006

CHEVROLET

Avalanche ** 

2003-2006

Cavalier

2000-2005

Colorado

2004-2012

Corvette

2005-2013

Express

2003-2007

Impala

2000-2005

Kodiak C4500-C8500 

2003-2009

Malibu

2001-2003

Malibu 

Classic

 2004-2005

Monte Carlo 

2000-2005

CHEVROLET (CONT)

Silverado ** 

2003-2006

Silverado 

Classic 

** 2007

SSR * 

2003-2006

Suburban ** 

2003-2006

Tahoe ** 

2003-2006

Trailblazer * 

2002-2006

Trailblazer

2007-2009

Uplander

2005-2008

GMC

Canyon

2004-2012

Envoy * 

2002-2006

Envoy

2007-2009

Savana

2003-2007

Sierra ** 

2003-2006

Sierra 

Classic 

**

2007

TopKick C4500-C8500 

2005-2009

Yukon / Yukon XL **   2003-2006

HUMMER

H2 † 

2003-2007

H3/H3t

2006-2010

ISUZU

Ascender

2003-2008

H-Series

2003-2008

I-Series

2006-2008

OLDSMOBILE

Alero

2001-2004

Bravada

2002-2004

Intrigue

2002

PONTIAC

Aztec

2001-2005

Grand Am 

2001-2005

Grand Prix 

2004-2008

Montana SV6 

2005-2006

Sunfire

2000-2005

SAAB

9-7x

2005-2009

SATURN

Relay

2005-2007

*  These vehicles have a digital amplifier option. Please reference the “Service Parts Identification” 

sticker located in the glove box for the RPO code UQA. If UQA is present, then the vehicle is 

equipped with a digital amplifier. Either use the AX-GMCL2-SWC interface, or bypass the amplifier. 

**  These vehicles have a digital amplifier option. Please reference the “Service Parts Identification” 

sticker located in the glove box for the RPO code Y91. If Y91 is present, then the vehicle is equipped 

with a digital amplifier. Either use the AX-GMCL2-SWC interface, or bypass the amplifier. 

†  These vehicles are standard for a digital amplifier. Either use the AX-GMCL2-SWC interface, 

or bypass the amplifier.

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