Crux General Motors Radio Replacement Module (SWRGM-49)

Install an Aftermarket Radio in select 2006-2015 General Motors LAN 29-Bit Vehicles and Retain Steering Wheel Controls

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The CRUX SWRGM-49 is a premium interface for select General Motors LAN 29-Bit Vehicles. It facilitates the integration of an after-market radio to fully retain factory features in GM LAN 29-Bit vehicles with Bose Amplified and Non-Amplified Systems. This enhanced interface is also pre-programmed for retention of steering wheel controls.

General Features:

  • Aftermarket Car Stereo Installation Interface
  • For select General Motors LAN 29-Bit Vehicles
  • Plug and Play Installation
  • Retains Steering Wheel Controls via built-in, pre-programmed interface
  • Retains Factory Warning Chimes
  • Works with Non-Bose and BOSE amplified systems including Premium BOSE Y91
  • Retains Rear Seat Entertainment, Audio/Video. Requires Cable #CRUX2333A (sold separately)
  • Retains Back-up Camera
  • Retains Independently-controlled Dual-zone functions
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Compatible Vehicles

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

*Not compatible with 2012-up SUVs/trucks that are equipped with factory-installed Navigation radios.

Does not support Onstar

Check out the SWRGM-49 User Manual

Harness Features

Vehicle Sound System
This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
Standard Sound
Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Replacement Harness for Aftermarket Car Stereo
Additional Harness Features
The various features that the wiring harness provides to your car stereo and/or audio system.
Chime Retention
Retains Backup Camera
Retains Rear Seat Entertainment
Retains Steering Wheel Controls
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Buick Enclave
Buick Lucerne
Cadillac DTS
Cadillac Escalade
Cadillac SRX
Chevy Avalanche
Chevy Equinox
Chevy Express Van
Chevy Impala
Chevy Monte Carlo
Chevy Silverado
Chevy Suburban
Chevy Tahoe
Chevy Traverse
GMC Acadia
GMC Savana
GMC Sierra
GMC Yukon
Hummer H2
Pontiac Torrent
Saturn Outlook
Saturn Vue
Suzuki XL-7

Premium Harness Features

Factory System Amplification
This refers to the factory sound system and whether the item is compatible with amplified or non-amplified systems.
Compatible Premium Audio Systems
Some vehicles have higher end audio systems installed in them by the manufacturer. This specifies which premium audio systems this item is compatible with.
Standard Bose
GM-LAN Compatible
This means that the item is compatible with GM-LAN systems.
Compatible with Aftermarket Navigation Systems
This means that the item is made to work with aftermarket systems with navigation. Typically, this means that the harness has wires that are used with GPS navigation systems, such as VSS wires and others. Please read the product description for full details of this feature.
Chime Retention
This means that the harness is able to retain the vehicles chimes.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

407 Driver

Maurice, LA

Perfect, Easy Installation, WORKS WELL!

February 24, 2017

I had a Axxis adapter and it caused my 08 Silverado 2500HD t throw codes, fail to start and generally caused a Pain In The A--.

I purchased this, soldered up the connections according to the directions, installed the unit and that was all there was to it

The keys aer not probrammable as on the Axxis but that one did not work, this one did.

Works Perfectly, All in all, I could not be more pleased!

0 of 0 found this helpful

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Browse 2 questions and 5 answers
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Why did you choose this?
Sonic Electronix Store
Bc it fit
Andrew A on Jan 14, 2018
sonic said i needed it
DAN R on Jul 9, 2017
I needed it
Shane O on Jul 9, 2017
i wire up all wires how diagram stated still no sound ???
A shopper on Mar 31, 2017
Best Answer: Your problem/question is quite vague. Not sure if this helps, but I don't have the power connected to mine because of a large feedback when turning my car on. The sound still goes through no problem. Test your speaker outputs going to the Crux unit by hooking them up to a speaker to ensure your giving it a good signal. Then test your amp with RCA inputs from a known good source (headphone jack to RCA cable works nice paired with your phone or laptop).
House Brand 3.5MM-RCA
House Brand 3.5MM-RCA
Reply · Report · Kurtis K on Apr 3, 2017
· Add Answer · I Have This Question Too (0)

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Crux General Motors Radio Replacement Module (SWRGM-49)

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Crux General Motors Radio Replacement Module (SWRGM-49)

Install an Aftermarket Radio in select 2006-2015 General Motors LAN 29-Bit Vehicles and Retain Steering Wheel Controls


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