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Axxess GMOS-09- OPEN BOX

OnStar Interface for Amplified GM Vehicles with "Door-n-Lock" Style Harness

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This item has been discontinued

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Product Features:

  • Designed to allow the user to require the OEM Radio with an aftermarket unit in amplified GM Vehicles with "Door-n-Lock" Style harness equipped vehicles with amplified audio system
  • Retain full functionality of OnStar with adjustable volume output
  • Retain warning and door chimes with adjustable level output
  • Retention of Retained Accessory Power (RAP)convenience features
  • Required outputs for the installation of a navigation radio included
  • USB updatable with Axxess USB-CAB
  • Compatible with 2001-2003 Oldsmobile Aurora and 2000-2005 Pontiac Bonneville
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
  • Check the Product Instructions to see basic instructions and compatibility list for the Metra GMOS-09


  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • Blue - Power Antenna
  • 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
Provides Parking Brake & Reverse Signals
Provides Vehicle Speed Sense
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.
Oldsmobile Aurora
Pontiac Bonneville

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

Summary of Customer Ratings & Reviews

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Average Attribution Rating

Browse 1 question and 1 answer
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How can i install this to a AVH x2600BT pioneer?
A shopper on Dec 12, 2014
Best Answer: Hello,

The Axxess GMOS-09 is Vehicle Specific, not headunit specific. If your vehicle is one of the ones below, then it WILL work with your Pioneer Headunit.

OLDSMOBILE Aura 2001 2002
PONTIAC Bonneville 2000 2005
Reply · Report · Sonic Electronix SStaff on Dec 14, 2014
· Add Answer · I Have This Question Too (0)

Product Summary


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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-09- OPEN BOX