PAC OS5 OS-5 Radio Replacement Interface with Onstar Retention - Black (9"x9"x1.9") - Car Stereo Upgrade for GM Vehicles | Perfect for Aftermarket Head Unit Installation in Chevy, GMC, Buick & Cadillac

Features

Retains OnStar when the factory radio is replaced

Retains Factory Bluetooth (2009+ model vehicles) / Factory BOSE audio systems.Illumination output, parking brake output

Retains rear seat audio controls

Retains all warning chimes (chime module included)

Retains back-up sensors/park assist/back-up camera signal

Replacement interface for select gm vehicles with OnStar, Bose, and gm LAN data bus

Compatible with or without factory amplified audio system1

Can be used if the vehicle does not have OnStar

Compatible with or without Bose systems

Retains the 5.1 Digital audio system in select gm vehicles