Wiring route to the ridge?

I have some LED strips and speakers to wire in to the top of the van but can't find the route from the dash up to the "gulley". It is much less obvious that I'd imagined. (I would rather not tape wires to the outside of one of the pillars)

Can anyone give me a clue?

Cheers

They come from the gully (presume you mean over the side doors), along over the front doors (tucked down in the gap), then down the inside of the A pillar I think. Would have a look but it’s a bit dark and cold at the min.

Thanks raggy. I couldn't find any holes when I felt around, but I probably wasn't poking hard enough. Obviously they are routed somewhere -- maybe I should gibe the roof aerial cable a tug and see what moves. It's always more reassuring when another member advises though!