Axxess AX-ADGM02 ADBOX Aftermarket Stereo Installation Harness for 2006-Up GM LAN11 Vehicles Axxess ADBOX Aftermarket Stereo Installation Harness for select 2006-UP GM LAN11 Vehicles Harness is used when installing an aftermarket stereo Connects the aftermarket stereo harness to the vehicles factory harness Plugs into the factory harness without cutting any wires Made from OEM quality materials