Easily replace the factory radio in your GM vehicle with this all-in-one Radio Replacement Interface by PAC. The RP3-GM11 interface retains your factory-installed amplifier, provides navigation-based output signals and more to help simplify aftermarket radio installation while retaining your vehicle’s factory features. This radio replacement interface also provides a secondary output for adding an optional PAC steering wheel control retention interface. | Pac | | Radio Replacement Interface for Select GM Vehicles | Blue | Best Buy