What else besides the hitch for 2003 H-D Road King Classic FLHRCI do I need ???
MotoSport Staff Expert Over 5 years ago
In most applications you would also need the Trailer Isolation Relay package, Universal Sub-harness, and Trailer Hitch Receptical. If you are hooking up to a trailer with only four wires you would also need the 4-wire Trailer Converter.