Stereo Antenna Harness Adapter for Installing a New Radio Into a Dodge, Challenger, 2009, 2010, 2011, 2012, 2013, 2014 Antenna adapter for installing a new Radio into a DODGE CHALLENGER 2009, 2010, 2011, 2012, 2013, 2014 CarXtc adapter plugs directly into the antenna wire beyond the radio found in a CHALLENGER Plugs directly into your vehicle radio antenna harness behind the factory radio. Antenna adapter is needed for your DODGE CHALLENGER 09, 10, 11, 12, 13, 14 If installing an FM modulator you will need this and the standard aftermarket antenna adapter