I pulled the radio, no evidence of any mouse bites in there on the wiring, and I even disconnected all the wiring, and pulled the radio out. I guess there could be a damaged harness someplace, but i have no clue where to even start looking.

Short of going thru every item controlled by that fuse, is there any other way to diagnose this? Does anyone know of any device that can help pinpoint the short, or at least allow me to continue to test without going thru a hundred little white fuses? the only way I can test it now is to install a new fuse and watch it spark and blow.

Thanks.