iSimple ISGM535 Automotive Dual Auxiliary Input Kit for Select GM Class II Radio Vehicles Plug and play installation maintains factory wiring integrity Two separate inputs, RCA and 3.5mm minijack, for use with multiple audio sources Retains factory-installed satellite radio, if vehicle is Satellite radio ready Radio must have a "Band" or "XM" button to be compatible Not compatible in vehicles with the "Monsoon" System"