Axxess GMRSAV OE Video Integration for Select 2007-11 GM LAN29 Systems OE Video Integration for Select 2007-11 GM LAN29 Systems Retains Factory Rear Seat Entertainment System when Adding an Aftermarket Radio Provides Video Signal to Factory Overhead Video Monitors That Do Not Have The DVD Player Built In This harness must be used in conjunction with theAxxess GMOS-LAN-01,Axxess GMOS-LAN-02, or theAxxess GMOS-LAN-012Radio Replacement Module