This happened to me a few months ago. Check the wiring under the passenger side dash. Mine had a loose connection and a broken terminal. It seems...
Are you still looking for a donor car? If so, what area do you live in?
Sold: 1993 Black Mustang GT minus engine
1993 Black Mustang GT minus engine. I am the original owner. Bought it in 11/92 with 7 miles on it....