[flybouy]

Originally Posted by rhagfo

Just a thought, when I added backup lights to our 5er I used one of the existing wires from the front compartment to the pin box J-box as a pull string to pull in the new wire.
I accessed the wire loom in the drivers side propane tank compartment. Can’t remember now for sure, but I think I pulled two wires from the pin box. The new backup wire and a return pull wire to pull back the existing wire I was using to pull the tow wire from the pin box location.

Any time I go thru the trouble of pulling a wire for something I leave a pull string behind in case I ever need to pull another wire. When I worked in the restaurant and retail industry I would spec a few empty conduits with pull strings as it seemed like they were always adding something after the fact. The upfront cost was well worth the cost and disruption later after opening.