Now I am trying to figure that short out. I bought a short tracer set. But, now I realized I cannot use it, because it needs power in the blown fuse location to power the tone sender!
Are you talking about the fusible link blowing when the key is accessory?
FYI. In general.
Key in RUN powers both the Ignition 1 (run) wires and the Accessory wires.
* Ignition 1 wires power engine related items; alternator field, ignition, electric choke assist if present, throttle stop solenoid if present, etc.
* Accessory powers everything else that gets power only when the key is on. This includes wipers, heater fan, turn signals, etc.
