The Hopkins Vehicle Wiring Converter, part # HM48915, is used for a vehicle that will have a 3-wire system, which means it would have separate stop and turn signals, to plug into a trailer with a 2-wire system, which has the stop and turn signal combined.
Your 2000 Plymouth Neon will have a 2-wire system, so the # HM48915 converter is not needed. To get a 4-way on your Neon you can use the Draw-Tite Wiring Hardwire Kit, part # 18252. Using the included circuit tester these wires will tap... view full answer...