Started up my 66 today and noticed I had no dash electronics happening, no tach , no radio, no gauges , signals , nothing ! Shut the car off started it again, same issue. Then I heard a click and everything was back. There is no smell of PVC from overheated wires, and no cutting in and out of power . The only 2 things that have not been replaced is the main harness and the voltage reg. Any thoughts and input would be appreciated.