Provides accessory power (12V 10A); Retains RAP; For use in both amplified & nonamplified sound systems; For use in models without OnStar(R) (if OnStar(R) is present it will be lost); Retains all warning chimes through onboard speaker ; High-level speaker input; Low profile case ; Retains balance & fade; Micro-B USB updateable; Compatible with GM(R) Equinox 2005-2006 & Torrent 2006;