Purchased a British style headlight from MikesXS . There’s only one hole for wiring, which was not nearly big enough for all of the wires and connectors to fit though. I made a pattern and used it to locate spots for two additional wiring holes. The holes were drilled undersize using a circular hole saw and handheld drill. I enlarged the holes to fit grommets (from the local hardware store) using a die grinder. All of the wiring now fits in headlight.