There is a post of a guy who removed his roof and total rebuilt it, not the same model. Shows the aluminum sub framing and wires running through the channels. Maybe worth spending a few minutes looking for.
It is an older post, but it brought back up to the top in the last month or so. Probably in the maintenance and repair forum.
Edit; found it, some of the images are missing, but it still should help some
https://www.jaycoowners.com/forums/f...ent-39639.html