im going to purchase a roof rack setup for my access cab and put a carry basket on top. And i want to try to hook up 2-4 lights on the front of the basket for those late night snow runs. Question would be i know some of you have run wires back through your 3-rd light, is this hard to do? what has to be removed to be able to run the wires? and would running say 4 power wires and just one bigger ground wire through there cause any leaking issues at all?