Thanks to all of you for responding to my question (is a brp trailer necessary) lots to think about,thanks. Next question,is the rt622 brp trailer discontinued and if so why? All I see now is the freedom trailer. Also is the wire harness difficult to install, Can i do this myself I believe I am capable of doing so as long as I don't have to cut or splice wires.Which wire harness is the best as I see slot of choices, signed confused???