So i just want to thank you all who have thus far shared their possible
solutions for the problem. I thought i had figured it out. I noticed the oil gauge
wire had several exposed patches of wire where the old plastic coating had worn off. One such area appeared to be rubbing against the edge of the heater blower housing. I thought that this might be the short.I wrapped the exposed areas in electrical tape and wah lah, the fuse didn't blow. It stayed working for about a day. Im using an inline 25a fuse holder now so i can go thru fuses rather than using the old small hard to find type.But alas it blew again. I don't think my wiper is the culprit because it was working fine after i wrapped the oil gauge wire and it was not turned on when the fuse blew again. In fact nothing was turned on per say, engaged. The fuse blew when i just turned the IGN over parked in a parking spot. But i will inspect the heater switch along with the possibility that the wiring from the wiper switch maybe is shorting against the wiper motor(someones other post discovery i read on here)And so the search continues.....