iSimple ISGM531 Automotive Dual Auxiliary Input Kit for Select GM 29-Bit LAN Vehicles Plug and play installation maintains factory wiring integrity Ideal for mp3 players, portable DVD players, handheld GPS, laptops, and gaming systems Retains factory-installed satellite radio, if vehicle is Satellite radio ready Two separate inputs, RCA and 3.5mm minijack, for use with multiple audio sources