I am attempting to run Aux lights for my bx2200, just two. I finally found some suitable ones when I was out of town, but this morning when I opened them up I found that there is only one wire coming out of the light. There are two aux wires under seat, one red with black stripe (power) and one black, (ground,...or is it a return?) I am guessing that I just gang the two lights togeather and just run one plug to red wire? The lights are sealed so I am assuming that the bracket is the ground.