14 The LED power wire needs to be routed to the passenger compartment from the door shell. Drilling a pass-through hole can be accomplished easily with a drill bit extension from inside the door shell. The body side is even easier, with direct access to the doorjamb from inside. Be sure to use the included wire grommets when routing the wiring through metal. Since we had the deluxe interior wiring harness in place already, we simply made a slit in the harness grommets and passed the wiring through with the help of a pick tool.