Specials Outlet
GM Factory Integration Adapter General Motors OnStar® data bus interface
Retains OnStar and factory door chime with aftermarket radio in select GM vehicles

1984 Tercel with Factory Stereo [remove]

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Problem: Installing an aftermarket receiver in some 2000-up General Motors vehicles with OnStar means losing OnStar functions, as well as other audible safety warnings.

Solution: Metra's GMOS-01 GM data bus interface lets you replace the factory receiver in these vehicles while keeping OnStar, along with the door chime and audible safety warnings. Hook the GMOS-01 to your aftermarket radio, mount the module, and plug it into the existing factory plug. Get the great sound you want, and keep all important safety features intact. And you can adjust volume settings for OnStar as well as the safety chimes.

Also, once you turn off the ignition in these GM vehicles, the radio continues to play until you open the door. This interface maintains that function with your new aftermarket radio. This interface is compatible with select 2001-and up GM vehicles. If you haven't done so already, please enter your vehicle information or call a Sales Advisor at 1-888-955-6000 to find out if this item is compatible with your vehicle. Warranty: 1 year.

Note: The GMOS-01 will not work with factory-installed Bose car audio systems.

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Learning Center

Car Stereo Installation Video
Car Stereo Installation Video
View a step-by-step overview of a basic car stereo receiver installation.
Car Stereo Installation Guide
Car Stereo Installation Guide
This installation guide walks you through the process of installing a new in-dash receiver in your car.
No Interest If Paid Within 6 Months*

* Valid on qualifying purchases made between 12/29/09 – 3/31/10 when you use your Sony Financial Services credit card account.
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On promotions requiring a minimum payment, payments over the minimum will usually be applied to those promo balances before non-promo and other balances. If you have a non-promo balance, this may reduce the benefit from the promo. If you want to change this payment allocation, please call Customer Service. Standard terms apply to non-promo purchases and optional charges. Promo purchases on existing accounts may not receive full benefit of promo terms, including reduced APR if applicable, if account is subject to delinquency pricing. As of 12/01/09 APR 23.99% and on all accounts in default 29.99%. Minimum Finance Charge $2.00. Subject to approval by GE Money Bank.

Offer subject to termination at any time without prior notice.

GM Factory Integration Adapter

General Motors OnStar® data bus interface Retains OnStar and factory door chime with aftermarket radio in select GM vehicles

Item #120GMOS01
IN STOCK

What's in the box?

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  • GMOS-01 Class II Data Bus interface
  • Wiring harness with 10-pin Molex on one end and bare wires on the other
  • Wiring Harness with 12-pin Molex on one end and 24-pin Molex and 12-pin Molex on the other (plus bare wires)
  • Installation instructions