Axxess GMOS-LAN-08

Non-Amplified Harness for Select 2012-Up GM Vehicles

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Axxess Audio Store

The GMOS-LAN-08 interface is designed to allow the user to replace the OEM radio with an aftermarket unit in non-amplified 2012-Up GM vehicles that use the GMLAN data bus system and retains full functionality of the Onstar system as well as all safety and warning chimes. The GMOS-LAN-08 will also preserve the retained accessory power (RAP) convenience features. This interface has the capability of adjusting chime and Onstar volumes as well. In addition to these features, the GMOS-LAN-08 now has the required outputs for the installation of a navigation radio.

General Features:

  • Interface designed to allow the replacement of the OEM Radio with an aftermarket receiver in non-amplified 2012-Up GM Vehicles that use the GMLAN Data Bus system
  • Retains full functionality of the OnStar system
  • Retains warning and safety chimes with adjustable level output
  • Output for audible turn signal sound
  • Retention of the Retained Accessory Power (RAP) convenience features
  • Required outputs for the installation of a navigation radio included
  • USB Update interface compatible
  • 14-Pin harness with stripped leads
  • 12 Pin to 30 Pin GM Harness
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty

Compatibility List:

  • Cadillac:
    • 2012 - Up Escalade
  • Chevrolet:
    • 2012 - Up Avalanche
    • 2012 - Up Cheyenne
    • 2012 - Up Silverado
    • 2012 - Up Suburban
    • 2012 - Up Tahoe
  • GMC:
    • 2008 Savanna
    • 2012 - Up Sierra
    • 2012 - Up Yukon

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
Provides Parking Brake & Reverse Signals
Provides Vehicle Speed Sense
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.
Cadillac Escalade
Chevy Avalanche
Chevy Cheyenne
Chevy Silverado
Chevy Suburban
Chevy Tahoe
GMC Savana
GMC Sierra
GMC Yukon

Premium Harness Features

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

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Browse 1 question and 1 answer
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Is this installation kit plug and play or splice?
A shopper on Dec 1, 2016
Best Answer: You or Your Installer will need to bring the wires from the GMOS-LAN-08 and your aftermarket radio Together. It is not plug and play.
Reply · Report · Rick MStaff on Dec 2, 2016
· 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: Axxess GMOS-LAN-08

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Axxess GMOS-LAN-08

Non-Amplified Harness for Select 2012-Up GM Vehicles


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