If you have barn doors then a popular route to the roof is the tailgate hinge cutout on the body, which will be filled with a gasket.
It's probably a long route for your use case and you'd probably need to run cable forward along roof rails or similar.
On the plus side you might find that route and roof rack ideal for feeding solar in as well.
It's probably a long route for your use case and you'd probably need to run cable forward along roof rails or similar.
On the plus side you might find that route and roof rack ideal for feeding solar in as well.