Compatible with select Chrysler, Dodge and Jeep vehicles Including select Chrysler 2005-2007 300 and 2006-2010 PT Cruiser models and select Dodge 2007-2008 Caliber, 2006-2007 Charger, 2005-2007 Dakota and 2004-2007 Durango models. Also compatible with select Dodge 2005-2007 Magnum, 2009 Ram 2500 and 3500 and 2006-2008 Ram models and select Jeep 2005-2007 Grand Cherokee and 2007-2008 Patriot models. Installation harness Bridges the connection between your existing Maestro RR module and your compatible vehicle’s audio and data system, so you can enjoy a plug-and-play interface. Plastic and copper materials Along with a protective coating offer durability.