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Radio Interfaces

Car radio replacement radio interfaces allow you to remove your factory radio and install a new factory radio while retaining all of the factory features.

Onstar adaptors - Onstar adaptors allow you to remove your factory radio and install a new factory radio  while retaining all of the factoyr Onstar features.

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  1. Metra GMOS-09 Car Stereo interface kit for amplified audio systems
    Metra GMOS-09 2000 - 2004 GM OnStar Class II Data Bus Interface for Amplified Audio Systems
    Rating:
    84 % of 100
    $123.99
    • Easily remove the factory stereo in an otherwise impossible situation and replace it with an aftermarket stereo and retain all of the factory functions
    • Provides accessory (12-volt 10-amp)
    • Retains R.A.P. (retained accessory power)
    • Used in Non-Amplified audio systems
    • Retains chimes
    • Provides NAV outputs (parking brake, reverse, mute, V.S.S.)
    • Fits select Oldsmobile and Pontiac vehicles with amplified audio systems
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Car Stereo Wiring how to's and guides
What do the wire colors of a car stereo mean?
Car stereo wiring is color coded for convenience and simplicity. Each wire color has a specific meaning, we show you what they are.
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