water, entering from behind. and how to dry inside wall

campigloo wrote:
I would drill a few small holes inside through the paneling in some obscure place. Put a little fan in it to move some air around. May take a few days but air circulation is key. IMHO

what about using a (small) shop vac.. and remove all the marker light fixtures.. and pulling the air out of the walls???

is there fiberglass insulation in the walls? there is NONE near the lights and wires for the top of the Back Wall. has the most moisture.

Ideas...??