2002 Ford Mustang drivers window not going up or down

Electrical problem
2002 Ford Mustang 6 cyl Two Wheel Drive Manual

my sons drivers window will some times go up then won't go down or visa/versa. He ends up changing fuses but this morning we noticed that the interior lite sometimes come on when we open his door and sometimes not so we believe there is a short in the wires running from the car through to the door. Our question can we pull the rubber dust seals off from the car side or what?