i want to screw a few hooks into the ceiling and metal trim at top of wall of a pop top Avan caravan. I haver tried to find Wiring diagram , can't work out if the wires are in the walls, floor or ceiling. They would be hooks to hang a garment.
I do not Know about your Avan but most of the time
they will take to shortest route to cable
as this is the cheapest. you should be ok along metal trims at top of wall
regards Mark
Why not use Command 3M adhesive hooks, no unsightly holes no worry about what you may drill into. They can also be removed without leaving a mess and one day you may want to sell the van and others would not appreciate holes everywhere.
I once saw a guy that thought he had the best way to store fishing rods by screwing brackets to the inside ceiling of the van, what a bloody mess, he thought it was a great idea though. My wife would have killed me if I'd done anything like that with any of our vans ! mind hopefully I'm not that stupid.