PAC OnStar Radio Replacement Interface Select GÇÿ06 - '14 29-bit GM LAN VehiclesUpgrade your GM LAN equipped vehicle with confidence using the PAC OnStar Radio Replacement Interface. Designed for select GM LAN vehicles from 2006 through 2014, it enables a factory radio replacement while preserving 29 bit GM LAN compatibility. Compatibility: 29 bit GM LAN vehicles from model years 20062014 Product Type: OnStar Radio Replacement Interface Brand: PAC Purpose: Enables factory radio replacement while preserving GM LAN network