GM LAN Data Interface with SWC 2006-Up*
* For non-amplified models, or models with an analog activated amplifier
INTERFACE FEATURES
• Provides accessory power (12-volt 10-amp)
• Retains R.A.P. (retained accessory power)
• Provides wires for multimedia radios
(parking brake, reverse, speed sense)
From the WM-GM29-SWC harness to the aftermarket radio, connect the:
• Black wire to the ground wire.
• Yellow wire to the battery wire.
• Red wire to the accessory wire.
• Blue wire to the power antenna wire (LD-GM29A only).
• Blue/White wire to the amp turn-on wire.
• Orange wire to the illumination wire (if applicable).
Note: LD-GM29B harness has (3) Orange wires
• Gray wire to the front right positive speaker output.
• Gray/Black wire to the front right negative speaker output.
MetraFits.com
• Retains chimes
• Retains audio controls on the steering wheel
• Retains balance and fade
• Micro-B USB updatable
CONNECTIONS
• White wire to the front left positive speaker output.
• White/Black wire to the front left negative speaker output.
• Purple wire to the rear right positive speaker output.
• Purple/Black wire to the rear right negative speaker output.
• Green wire to the rear left positive speaker output.
• Green/Black wire to the rear left negative speaker output.
• Blue/Pink wire to the VSS/speed sense wire.
• Green/Purple wire to the reverse wire.
• Light Green wire to the parking brake wire.
© COPYRIGHT 2020 METRA ELECTRONICS CORPORATION
WM-GM29-SWC
I N S T A L L A T I O N I N S T R U C T I O N S
APPLICATIONS
For Additional
LD-GM29A applications (2)
Product Info
BUICK
Enclave
Lucerne
CADILLAC
DTS
Escalade, Escalade ESV & EXT
SRX
CHEVROLET
Avalanche
Captiva Sport
Equinox
Express
Impala
Impala Limited
Monte Carlo
Silverado 2500/3500
Silverado
(new body)
Suburban
Tahoe
Traverse
LD-GM29B applications (1)
CHEVROLET
Cobalt
HHR
Malibu
PONTIAC
G5
G6 (5th digit of VIN
must be a J, K or L)
SWC Programming Sequence
Continued on the next page
(1) Press and hold • (2) Tap
GMC
2008-2017
Acadia
2007-2016
2006-2011
Acadia Limited
2017
Savana
2008-Up
Sierra 2500/3500
2014
2006-2011
Sierra (new body)
2007-2013
2007-2011
Yukon / Yukon XL
2007-2009
2007-2014
HUMMER
2007-2013
H2
2008-2009
2012-2015
2007-2009
PONTIAC
2008-Up
Torrent
2007-2009
2006-2013
2014-2016
SATURN
2006-2007
Outlook
2007-2010
2014
Vue
2008-2010
2007-2013
SUZUKI
2007-2014
XL-7
2007-2009
2007-2014
2009-2017
PONTIAC (Cont)
2007-2010
G6
2010
2006-2011
Solstice
2006-2009
2008-2012
SATURN
Aura
2007-2009
2007-2009
Sky
2007-2009
2009
REV. 3/25/20 INST-WM-GM29-SWC