This product is excellent. It comes with a plug that plugs straight into your car's standard trailer socket (I have an Acadia 14). Installation was easy, the hardest part was removing the rear passenger tire. First connect about 8 fuses and relays (all included), then remove the rear passenger wheel and connect the wiring. Finally, use the included zip ties to run the wiring about 3 feet to the hitch and you're done! Takes about 30 minutes and works like a charm! Highly recommended!