[Duffinatur]

Hi all,
I have been having problems with my dash lights and running lights popping fuses. I've disconnected each light, and the dash is completely out of the car (no dash lights hooked up) Without any lights hooked up, the second I pull the parking light switch, pop goes the fuse. I've inspected the wiring that runs behind the dash all the way to the fuse box and don't see any frayed/cut/loose wires. I lent my multi meter to a friend and won't get it back for a while so I can't test that way, but I do have a 12v test light. Any suggestions?
Could I have a bad relay? Maybe a bad headlight switch? A short in the harness? A grounded wire somewhere?
Thanks in advance.
Duff