Took the 69 out for a drive tonight. Drove it for about 15 minutes and the headlights started flashing on and off ever 5-10 seconds or so. It does this once in a while, so its not all the time. I replaced the dimmer switch about 8 months ago. It has had this problem for a good few months now. I have checked all of the wiring, and the plug on the dimmer switch. Does the headlight swtch have a breaker in it like most others? Or could it be a bad switch? Also, none of the headlights light up when you click the brights on. They have never worked since Ive owned the car. The low beams turn off too. This is getting irritating. Any ideas?