Premium Material: The radio wiring adapter for GMC made of durable ABS plastic for long term use and high quality copper wires for great conductivity. Red ignition wire is suitable for those vehicle’s OEM radio harness without ignition wire. You only need to connect one end of the Red Ignition Wire to the ACC wire that equipped with the aftermarket radio and the other end to the ACC harness position located behind the vehicle's ignition switch. Car radio harness connector for selected 2012-2015 GMC, 2009-2010 Chevy cobalt ,2007-2009 Pontiac Torrent, 2007 Hyundai santa fe, Pontiac G5 2007-2010,Pontiac Solstice 2006-2010. (Check compatible models on Picture 3 ). Stereo wiring adapter for selected 2006-2017 Chevrolet, 2006-2017 Buick and 2007-2012 Cadillac. (Check compatible models on Picture 3 ). Note: Not compatible with amp systems like Bose, Infinity, On-Star etc, just works with standard non-premium amp factory systems. NuIth radio wiring harness is used to upgrade the factory radio to aftermarket stereo radio, antenna adapter connects aftermarket radio to factory antenna lead.