Hey John. I'm running into a problem with my 73 Duster. I used the wiring harness from a 74 Dart that uses the blue interlock box under the dash. After starting the car with most devices plugged into the harness, the blue box started to glow red as if there was a short. I turned the engine off, inspected the box for heat damage and found nothing. Now it won't start and I'm associating the no start problem with the box. Did you ever work a solution to eliminating the blue box? I'd like to bypass the box. D