The price is right on the truck. $600, it's worth more than that in parts. The owner says that the truck ran well before this happened; Vehicle was started, roll down windows get ready to drive away. Turn on headlights and then nothing, engine dies, absolutely zero power. Battery is good engine will spin over with remote stater do-hickey. So my question is ; is there a main fuse or fusible link that would cause 100% loss of electricity and if so where is it?