I have a 68 Dart in storage and I periodically start and run the car. Had the car running briefly but had to shut it down to take a phone call. Came back out next day and went to start it and heard a "clunk" when I turned the key to start - lights and all electrical go dark. I disconnect the battery and reconnect - lights are back on - go to turn the key I get the noise and no electrical. To triple check did it all over again and same result. I swapped our relay and issue remains. Any ideas would be appreciated. Thanks!