Originally Posted by AbdRahim
Monkey Run: How did you find the wiring to add the side marker lights to. .I have always wanted more lighting on my rig.
As mentioned, find the nearest applicable wiring harness and tap into it. I have not mounted my lights yet, however, on mine, the rear harness is extremely easy to access behind the cap by removing the radiator grill. For my additional turn lights, those will be mounted on the side of my rig on the front cap, I have several inches cap which runs along each side, my front turn light harness is right there and easy to access also.
As an aside, I was following a tractor without a trailer attached last night. He had, in addition to the DOT required lights, three brake/tail lights on each side of the cab and so many marker lights on each side and the front, I could not count them all.