I am restoring a 66 mustang interior. I would like to install the door courtesy lights. I am unsure where to drill the hole in the door frame to install the wiring. I have found the divot in the front of the door were the hole is drilled for the wiring harness to be installed. Is the hole drilled in the frame exactly opposite of the divot in the door or is there another divot in the frame that indicates were to drill the hole?Thanks.