I am getting a new rear bumper/tire carrier and it will have floods in it. I would like them to be on their own switch wired directly to the battery. What is the best path from the rear bumper to the battery? Under the vehicle or through the inside? I figure the break lights have a path back there, and that might be a good route, just not sure what that route is? How did any of you wire up your rear floods? Thanks for any and all suggestions.