I looked at the fuses and none were blown, however, it almost looked like there were some missing:
In the first picture, it looks like in the bottom left next to the 10AMP fuse... there is a spot for 40/30/40

on the next pic, it is at the bottom, 4th from the left "F/L 30A Trailer Tow"

Do I need a fuse in there to get the 12v to work from the TV to the popup?
Thanks
-jeff