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Crux CS-GM29 Wiring Interface

Connect a new car stereo and retain steering wheel controls and factory amp in select 2006-up GM-made vehicles

Item # 249CSGM29

The Crux CS-GM29 interface allows you to install an aftermarket radio in select 2006-up General Motors vehicles...

Find what Fits your car

The Crux CS-GM29 interface allows you to install an aftermarket radio in select 2006-up General Motors vehicles...

Item # 249CSGM29

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C$129.99

About the Crux CS-GM29 Wiring Interface

Install a new radio and keep your factory features

The Crux CS-GM29 interface allows you to install an aftermarket radio in select 2006-up General Motors vehicles while retaining your warning chimes. The interface works in GM vehicles with or without a factory amplifier. If you're installing a Pioneer, Sony, Alpine, Clarion, Kenwood, JVC, or Blaupunkt car stereo, you'll retain the use of your steering wheel audio controls.

Install a new radio and keep your factory features

The Crux CS-GM29 interface allows you to install an aftermarket radio in select 2006-up General Motors vehicles while retaining your warning chimes. The interface works in GM vehicles with or without a factory amplifier. If you're installing a Pioneer, Sony, Alpine, Clarion, Kenwood, JVC, or Blaupunkt car stereo, you'll retain the use of your steering wheel audio controls.

If you're installing a car stereo with a video screen and a camera input, you'll retain the use of your vehicle's backup cam. The interface also offers the reverse, mute, and Vehicle Speed Sensor (V.S.S.) outputs that you'll need if you're installing a navigation receiver. The system also keeps the Retained Accessory Power feature and the factory subwoofer (if present). It includes the control module and vehicle and steering wheel control harnesses.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if the CS-GM29 is compatible with your vehicle. Warranty: 1 year.

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What's in the box:

  • Radio replacement interface
  • GM-29 harness
  • Amplifier/Backup camera harness
  • SWC harness
  • Antenna adapter
  • Installation Instructions
MFR #CS-GM29

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Crux CS-GM29 Wiring Interface reviews

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More details on the Crux CS-GM29 Wiring Interface

Stacey B.

Product Research

Features

Radio Replacement Interface: The CRUX CS-GM29 is a radio replacement interface for select GM LAN 29-bit vehicles. It facilitates the integration of an aftermarket radio and enables retention of factory features when replacing a factory installed radio in select GM vehicles (with or without factory-installed amps). This interface is also pre-programmed for retention of steering wheel controls.

Note: This interface does not retain the vehicle's factory OnStar, if equipped.

Vehicle Compatibility: The CRUX CS-GM29 radio replacement interface works with the following GM LAN 29-bit vehicles.

Make Model Year
Buick Enclave 2008-2015
Lucerne 2006-2011
Cadillac DTS 2006-2011
Escalade 2007-2014
SRX 2007-2009
Chevrolet Avalanche* 2007-2013
Equinox 2007-2008
Express Van** 2008-2013
Impala/Impala SS 2006-2013
Monte Carlo 2006-2007
Silverado 1500/2500/3500 Pickup* 2007-2013
Suburban* 2007-2014
Tahoe* 2007-2014
Traverse 2009-2015
GMC Acaida 2007-2015
Savana** 2008-2013
Sierra 1500/2500/3500 Pickup* 2007-2013
Yukon* 2007-2014
Hummer H2 2008-2009
Pontiac Torrent 2007-2009
Saturn Outlook 2007-2010
Vue 2008-2010
Suzuki XL7 2007-2008

Notes:

  • *Not compatible with 2012-up SUVs/Trucks that are equipped with factory-installed navigation radios.
  • **Not compatible with Express & Savana vans that are powered by a diesel engine.

Amplified or Non-Amplified Systems: The CRUX CS-GM29 can be used in GM vehicles with or without a factory amplified system. Its compatible with Bose, non-Bose, and Y-91 audio systems.

+12V Accessory Output: In many GM vehicles, there is no 12-volt accessory wire in the factory harness, which requires the installer to run an accessory wire to the fuse box or underneath the steering column when installing an aftermarket radio. The CS-GM29 is designed to provide a 12V/3A switched accessory output (red wire).

Warning Chimes: The Crux CS-GM29 retains factory warning & safety chimes through the use of an on-board speaker. The volume of the chime speaker is adjustable through a potentiometer on the interface module.

Retained Accessory Power (R.A.P.): The ignition power source of most GM vehicles keeps the radio on until one of the doors is opened; this feature is lost when replacing the factory radio with an aftermarket head unit without the proper installation accessories. The GS-GM29 is designed to retain the R.A.P. feature and keep the radio powered after the key is off, until the driver door is opened or the OEM timer ends; whichever happens first.

Navigation Outputs: The CRUX CS-GM29 radio replacement interface module provides a VSS (vehicle speed sense) and a Reverse Gear output to make installing an aftermarket Navigation radio simpler and less time consuming.

Backup Camera Retention: The CS-GM29 allows you to retain your GM vehicle's backup camera through the included backup camera harness with male composite video connector. Your in-dash aftermarket stereo must have a composite video camera input and a built-in video monitor.

Steering Wheel Control Retention: The CRUX CS-GM29 also features a steering wheel control output for Pioneer, Sony, Alpine, Clarion, Kenwood, JVC, and Blaupunkt aftermarket head units. The steering wheel control output consists of a right-angle 3.5mm connector and a light blue/yellow wire (use the connection that your aftermarket head unit is fitted with). The CS-GM29 interface module will work with any of the listed aftermarket head units, by setting its three dip-switches (see owner's manual for appropriate setting).

Note: The steering wheel control harness features two 4-pin connectors, two 3.5mm connectors, and one blue/yellow wire. You will only plug in one of the 4-pin connectors to the interface module and one of the 3.5mm connectors or blue/yellow wire into your aftermarket head unit you are installing (refer to owner's manual for which connection to use).

GM LAN 29 Harness: The included GM LAN 29 wiring harness features a 14-pin & 16-pin connector which plug into your vehicle's factory radio harness and a 16-pin & 8-pin connector which plug into the CS-GM29 interface module. The GM LAN 29 wiring harness also provides the following bare-wire leads which will need to be soldered or crimped to your aftermarket head unit's wiring harness:

Wire Color Function
Black Chassis Ground
Red +12 Volt Accessory
Yellow +12 Volt Constant
Orange Illumination
Blue/White Amp Turn-On
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -
Red/White Reverse Gear
Green/White VSS (Vehicle Speed Sense)

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Customer Q&A

Q
Crutchfield asked: Why did you buy this?
A
Help with of install [ R  May 27, 2019 ]
A
one stop shopping [ DANIEL  May 22, 2019 ]
A
I wanted to install an aftermarket stereo, and maintain my steering wheel controls, and not have to purchase a multitude of wiring harnesses and adapters; This Crux products takes care of everything in a small package. [ Nathan  Apr 29, 2019 ]
A
crutchfield recommended [ Glen  Apr 25, 2019 ]
A
My adviser, Doc, pointed out that this was a better option for me. Saved me $40! Don't hesitate to ask an adviser! [ Donald  Apr 11, 2019 ]
A
Recommend [ Dwight  Mar 05, 2019 ]
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Full kit for full radio install on a 2012 Chevy Silverado 1500. [ joshua  Jan 22, 2019 ]
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Steering wheel controller [ david  Jan 07, 2019 ]
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that was recommended [ J  Jan 04, 2019 ]
A
Recommended by advisor [ Steven  Dec 15, 2018 ]
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required [ Wendy  Dec 11, 2018 ]
A
Sonny suggested it [ Eric  Nov 09, 2018 ]
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keep steering wheel controls and factorly amp; [ Bobby  Sep 19, 2018 ]
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Recommended by your rep Adam [ John  Mar 23, 2018 ]
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The advisor and it retained the most features without having to have the cheap little speaker to retain the factory turn signal. [ Aaron  Aug 31, 2017 ]
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Recommended [ Ralph  Dec 09, 2016 ]
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To keep the factory steering wheel controls, door chimes, and audible warnings [ Thomas  Nov 15, 2016 ]
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simple installation [ David  Aug 24, 2016 ]
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i wanted to maintain my steering wheel controls so they recommended this item [ Kenneth  Jul 02, 2016 ]
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5 questions already asked

Q
What's the warranty?
[ Donald  Oct 09, 2019 ]
1 answer
A
The warranty is 1 year for parts and labor.
[ Calvin  Oct 19, 2019 ]  Staff
Q
What's the difference between this and PAC brand?
[ Comarade  Jan 18, 2019 ]
1 answer
A
For us the Cruz has better longevity. The PAC had a higher failure rate, we have had some of the Cruz to fail also but not as often
[ RICKY  Jan 18, 2019 ]
Q
Will this let me retain my factory Bluetooth steering wheel controls and factory Mic?
[ Ron  Apr 02, 2018 ]
3 answers
A
Hi there Ron, I believe that this wire harness will retain those factory features... it's a great product
[ Ricardo  Apr 03, 2018 ]
A
With this Interface I was able to keep all my steering wheel controls. Unfortunately, I wasn't able to use my factory mic. I own a 2013 GMC Sierra SLE w/o Bose.
[ Billy  Apr 03, 2018 ]
A
Yes it will. Not sure of the mic though. I don't use the Bluetooth mic feature.
[ Brian  Apr 02, 2018 ]
Q
Does this wiring kit have a blue remote turn on wire to add a aftermarket amp?
[ billy todd  May 07, 2017 ]
1 answer
A
I believe it does have both blue wires, one for remote and the other one I believe it's like a power wire.
[ Ricardo  May 07, 2017 ]
Q
will this(crux cs-gm29 wiring interface) work with the 2012 Chevy Tahoe LT, with Bose non-nav.? is there an option to keep onstar ?
[ Fruunk  Mar 12, 2017 ]
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
[ Kenny  Mar 14, 2017 ]  Staff
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