Gremlins in my Demon...........??

What year is this car? I know that mopars had problems in the early 70's with the under dash wireing which controled the charging and starting systems. The problem was at the main connecting plug at the base of the steering support bracket which runs the alt. and engine fuctions. This connector generally burns the main red and either yellow or brown wire in the cinnector, and the car will act crazy. If this is the case the grounds will be burned also and there are 6 grounds under the dash, it happened on 3 of my early 70's cars. Just a thought and maybe this will help.