How to drop wiring from a roof rack into the car?

As above really....... I'm about to mount 4 x spot lights on the front of the roof rack and a work light on the rear. Anyone out there got a roof rack wired up with lights and where does the loom run Also wanted to have some sort of point where the wiring detaches so the roof rack can be taken off With te lights and loom intact. Photos, ideas, links, suggestions and digs are all welcome

Well, I quite simply used 4 waterproof connectors to plug the LR Safri 3000 lights into and then fed then carefully throught the radio aerial, siliconed the rubber back before tightening the nut underneath. (accessed through interior light assembly), then fed the cables one left and one right, across roof lining, down A pillar then through the wings to their respective relays.

Any chance of a picture mate?

Will get some better pics for you after work Tuesday in the light! This photo i have changed the aerial for a shark fin and routed all the light cable into the same hole. I spend ages routing cables! I hate them being visible.

also used these for the connectors as the LR Safari 3000 lights plug straight in and they're waterproof too.

2 WAY 'ECONOSEAL' WATERPROOF MALE CONNECTOR | eBay UK