Professional pure copper core made, which keeps excellent conductivity and safe use. PVC Jacket insulation is thick and sturdy, coated well, extremely durable. Easy to use. Without cutting any OEM wiring harness. Come with wiring diagram. Car stereo wiring harness allows to install an aftermarket radio using the existing factory wiring and connectors. **NOTE** Not applicable for premium or factory AMP system, not retain some features like steering audio controls, rear DVD audio, etc. 70-5520 radio harness replacement for Lincoln model: 2007-2010 MKX (w/ OEM NAV), 2006-2008 Mark LT, 2003-2006 Navigator, 2003-2011 Town Car. For Mercury model: 2003-2011 Grand Marquis, 2003-2006 Marauder, 2005-2007 Mariner, 2005-2008 Montego, 2004-2006 Monterey, 2006-2010 Mountaineer. Fit for Hyundai Sonata 2006-2008. Compatibility: Fit for Ford F150 2006-2010, 2005-2012 F250 / F350 / 450 /550, 2011-2012 Ford F-250/350/450/550 (No Factory NAV), 2004-2010 Explore, 2003-2014 Expedition, 2005-2012 Focus, 2004-2007 Freestar, 2005-2007 Freestyle, 2005-2007 Five Hundred, 2007-2010 Edge, 2008-2009 Ford fusion SE, 2006-2007 Escape, 2005 Excursion, 2009-2013 Ford Econoline.