Steve,
I think the issue is the roll up unit, which on mine the coax was removed from, and then run directly to a double female f connector switch plate at the panel face. That may be the best bet. I do not know if you have a way to peek in there by removing something or by tilting the panel. They all seem to have differing levels of slack in the backside connections....mine is not very accommodating. My coax reel just sits behind the panel disconnected.
Later Ed