you might have a damaged cable.
measure the voltage at the switch then at the fuse. and do a continuity test on the cable, fuse seperately and then the cable with the fuse in it, as ive had a few holders in mine have a poor connection internally....
I'm not even getting power to the back of the fuse box on that fuse. You may be right as far as a bad wire go. More Mopar yoga positions under the dash today.
