PAC OS1-Bose OnStar Interface for 1996 - 2002 Bose-Equipped Vehicles: * Replaces factory radio in 1996 - 2002 GM SUVs and trucks while retaining OnStar * Plug and play, no cutting or splicing into factory plug * Communicates directly with Onstar * Module to prevent false triggering and eliminating unwanted audio noise * On-board amplifier will drive two 4W speakers in stereo * Use with existing factory speakers or external speakers * For 1996 - 2002 Bose-equipped vehicles