Shop Nilight 4 Pin Trailer Wiring Harness Kit 56334 Vehicle Standard 4 Way Connector Custom for 2007 2008 2009 2010 2011 2012 Dodge Nitro Jeep Liberty Simple Fit Tow Hitch Harness in high quality. No cutting or splicing factory wire. Plug and play harness. This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.