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Pac Audio OnStar Radio Replacement Interface for Select General Motors Vehicles without Bose Sound System (os1)


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  • Retains OnStar Function When Replacing Factory Radio
  • Plug In 21-pin Harness Installation
  • Retains Warning Chimes
  • Maintains Class II Databus Healthy Status
  • Compatible with Select GM Vehicles

The OS1 is an interface that retains OnStar functioning when a factory radio is replaced. The OS1 features easy plug-in installation for vehicles with a 21-pin harness. The interface retains Class II databus healthy status, as well as all the warning chimes. This model is compatible with select GM vehicles.