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Crux General Motors Radio Replacement Module (SOCGM-18B)

Install an Aftermarket Radio in select General Motors LAN 11-Bit Vehicles and Retain Warning Chimes, RAP and Other Factory Features (No OnStar - No Bose)

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Order within 61 hrs 34 mins to ship 10/24

Arrives by Monday, Oct. 31 to zip 94107

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Crux General Motors Radio Replacement Module (SOCGM-18B)

Install an Aftermarket Radio in select General Motors LAN 11-Bit Vehicles and Retain Warning Chimes, RAP and Other Factory Features (No OnStar - No Bose)


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The CRUX SOCGM-18B retains General Motors factory-featured safety and warning chimes — for installation of after-market radios. It provides 12 Volt Accessory output (4 Amp), including RAP (Retained Accessory Power), Illumination Output (2A. max), telephone negative mute trigger (output to new stereo), low voltage (battery run-down protection), and adjustable chime volume.

General Features:

  • Aftermarket Car Stereo Installation Interface
  • For select General Motors LAN 11-Bit Systems (without OnStar & Premium Bose)
  • Interface Retains the following factory features:
    • Bose amplified and Non-Bose audio systems (excluding Y91 or Z75 Bose)
    • Y91 or Z75 Code found in the service parts sticker located in the glove box
    • Safety and warning Chimes
    • Folding Mirrors (including reverse)
    • Park Assist (Front / Rear)
    • Heated Seats
    • Turn Signal (Clicker), without additional relay
    • Power Running Boards (if factory equipped)
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Compatible Vehicles

Use 14-pin & 16-pin harness for:
  • Chevrolet
    • 2007-10 Cobalt
    • 2007-11 HHR
    • 2008-12 Malibu
  • Pontiac
    • 2007-09 G5
    • 2008-09 G6
    • 2006-09 Solstice
  • Saturn
    • 2007-09 Aura
    • 2007 Ion
    • 2007-10 Sky

Use 24-pin harness for:

  • Chevrolet
    • 2005-06 Cobalt
    • 2004-07 Malibu
    • 2004-07 Malibu Maxx
    • 2008 Malibu Classic
  • Pontiac
    • 2005 - 2007 G5

Check out the SOCGM-18B User Manual

Harness Features

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
Retained Accessory Power (RAP) Retention
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.
Chevy Cobalt
Chevy HHR
Chevy Malibu
Pontiac G5
Pontiac G6
Pontiac Solstice
Saturn Aura
Saturn Ion
Saturn Sky

Warranty and Return Policy

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

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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 (SOCGM-18B)