I recently purchased a 65 coupe with a 289. The idiot light (charging system) was on on the dash when I purchased the car. The previous owner replaced the battery, the voltage regulator, and the alternator. I assumed this must be a minor wiring problem. However, I am stumped. I started with verifing the alternator connections, which matched a diagram posted on this site earlier, then changed the alternator wiring, followed by the voltage regulator/headlight feed. This didn't correct the problem. I then took the car down to autozone and had them load test the battery and such. They said all components were fine but there was no voltage output indicating a wiring problem. I proceded to change the engine gauge feed and install a new underdash harness per the wiring diagram to no avail. I have exhausted all known causes and all other electrical works great (lights, horn, etc...). Any electrical Gurus out there with some suggestions? It would be a big shot in the ego to drive the car down to garage and pay someone else to fix the problem.