Metra GMOS-LAN-04 GMOS-LAN Interface GM 06-08 Retains OnStar w/adjustable volume output Retains chime w/adjustable volume output Retains RAP feature Navigation outputs now included USB update compatible Compatible with amplified 2006-07 Chevrolet HHR, Pontiac Solstice, and Saturn Sky vehicles Retains OnStar with adjustable volume output Retains chime with adjustable volume output Retains RAP feature Navigation output included