father inlaw has a 73chevy truck and no electrical is working, gauge cluster all the way to the exterior lights, could there be just one main problem instead of me going through and ripping and tracing the wires. i dont know if there is a simple way to find the problem or something i might be able to check??
Optional Information:
Pre-1981 Chevrolet
Already Tried:
i havent checked it out yet, but i need to kno where to start