I replaced all the lights on my trailer with LED's. The brake lights work and blinkers. But none of the running lights work. I used the search feature to look up some info and think it may be a bad ground or bad splice on the brown wire. The question I have is all the running lights have a ground wire. I took the first lights ground wire and connected to the frame and ran a wire from that ground to all the lights on that side (1 wire for the left and 1 wire for the right) Do I need to ground each light separately?