He does not even tow anything!!! He does not even know how to change a light bulb. How can he even install a hitch when he can't even wire it!!! I SIGNMARK have led lights on all my trailers. never had one problem!!! Again go pay BMW for their time and for the same hitch!! The same!!! Don't be fooled by the (WEASEL)!!!! Its not LIFE SURPORT, AIRPLANE or a SUBMARINE Its a TRAILER HITCH!!! And if you know so much you would know how to wire it.!!!!! And he would not do so much researching on this hitch if THE WEASEL KNEW WHAT HE WAS TALKING ABOUT!!! DON'T CRY BECAUSE YOU PAID TO MUCH!!!! TO BAD FOR YOU!!! WEASEL LOL