Our take on the Metra VT-GMOS-04 Factory Integration Adapter
Metra's VT-GMOS-04 GM radio replacement adapter lets you replace the factory radio in select OnStar-equipped 2000-up GM vehicles using the existing wiring and connectors. Even if you don't subscribe to OnStar, you'll need this adapter to connect an aftermarket stereo.
Once you connect your in-dash receiver to the adapter, you'll get the great sound you want, and keep these important features intact. The Bose amplified speakers and the OnStar system will operate with your new radio, as well as the door chime and audible safety warnings. Plus, you can keep your steering wheel controls — the adapter gives you a connection to the Axxess adapter that works with most aftermarket stereos.
Also, once you turn off the ignition in these GM vehicles, the factory 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 2000-and up GMC, Chevrolet, Oldsmobile, Cadillac, Pontiac, Isuzu, and Hummer vehicles. Warranty: 1 year.
Important Note: If you haven't done so already, please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if your GM vehicle's warning chimes are integrated with the factory radio. If so, certain warning chimes in your vehicle may be disabled by installation of an aftermarket receiver. You must use the recommended Crutchfield integration adapter to retain the warning chimes. Failure to do so may result in serious injury or death.
Note: Most vehicles will require additional installation parts please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.