Stereo Antenna Harness Adapter for Installing a New Radio Into a Dodge, RAM Truck Without 8 inch Screen, 2013, 2014 Antenna adapter for installing a new Radio into a DODGE RAM TRUCK without 8 inch Screen 2013, 2014 CarXtc adapter plugs directly into the antenna wire beyond the radio found in a RAM TRUCK without 8 inch Screen Plugs directly into your vehicle radio antenna harness behind the factory radio. Antenna adapter is needed for your DODGE RAM TRUCK without 8 inch Screen 13, 14 If installing an FM modulator you will need this and the standard aftermarket antenna adapter