Ignition problem

I have an 1989 tracer 1.6 w/203000 miles. The problem is the car suddenly died (like someone turned off the key) after running fine. The same thing happened months before and was immediately fixed with a new coil. Not so this time. I did replace the coil (twice) to no avail as well as the distributor. There are 12 volts to the coil as well as two of the three wires plugged into the ignitor inside the distributor. I did find a broken wire but have no idea where it came from. It's the black wire behind and on top of the distibutor that you disconnect to set the timing. This wire also had 12 volts coming from it. The high voltage wire between the coil and the distributor seems fine. All the lights come on when you turn on the ignition BUT sometimes you have to turn the key back a touch to get the radio, clock, wipers, a/c to come back on. The timing belt is in intact.