so i decided to put a hitch on my 2010 s. that was pretty darn easy. the wiring harness that they sent me leaves me scratching my head a bit. ive looked all over the net trying to find a decent wire diagram of the tail lights and turn signals. there is no color code description that i could find. im hooking up a standard flat four plug system with pulse. does anyone know the colors of each of the light elements on the 2010 mini s?