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Radio Replacement Retention Interface for Select 2004-2009 GM LAN Vehicles with OnStar

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List price $189.95

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Radio Replacement Retention Interface for Select 2004-2009 GM LAN Vehicles with OnStar


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General Features:

  • Radio Replacement Retention Interface for Select 2004-2009 GMLAN 11Bit Vehicles with OnStar
  • Plug and play interface
  • Provides an accessory turn on wire and retains the factory Retained Accessory Power (RAP) feature
  • Provides a steering wheel control wire output that can be connected directly to a SWI-JACK, SWI-PS,or SWI-X
  • Retains all warning chimes and turn signal/hazard clicks
  • Steering wheel Mute/OnStar button functions just like factory. Initiate OnStar or mute aftermarket radio with optional steering wheel control interface
  • 1-year Manufacturer's warranty

Compatibility List:

  • Pontiac
    • 2005 - 2009 G6
  • Chevrolet
    • 2005 - 2006 Cobalt
    • 2004 - 2007 Malibu/Malibu Maxx
    • 2008 - 2008 Malibu Classic


  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • Orange – Dash Light Dimmer/Illumination
  • Green – Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White – Left Front Speaker (+)
  • White with Black Stripe – Left Front Speaker (-)
  • Purple – Right Rear Speaker (+)
  • Purple with Black Stripe – Right Rear Speaker (-)
  • Gray – Right Front Speaker (+)
  • Gray with Black Stripe – Right Front Speaker (-)

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.
Connect/Install an Aftermarket Car Stereo
Additional Harness Features
The various features that the wiring harness provides to your car stereo and/or audio system.
Chime Retention
OnStar 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 Malibu
Pontiac G6

Premium Harness Features

On-Star Compatible
This means that the harness is compatible with vehicles that have On-Star built-in.
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

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Browse 1 question
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I have an orange and white wire from os 311 b what is it for?
Robert L on Oct 28, 2015
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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: PAC OS-311B