Axxess GMOS-LAN-06 OnStar Interface for Select 2006-2007 Saturn Vehicles OnStar Interface for Select 2006-2007 Saturn Vehicles with or without Factory Amplifiers USB update interface compatible Will retain the retained accessory power convenience features Has the capability of adjusting the Onstar volume USB Update interface compatible Compatible with 2006-07 Saturn vehicles Retains OnStar with adjustable volume output Retains RAP feature Retains chime USB update interface compatible