Pac Audio OS1 OnStar Radio Replacement Interface for Select General Motors Vehicles without Bose Sound System
- 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.