OK, since car is in my warehouse I checked John on my way home tonight as you suggested. Removing the connector on the voltage regulator did put out the Gen light. Interesting observations with the key on and headlight switch on. I did check the brown wire and it is slightly over 11 volts on all these tests. With the dash dimmer control off & on low beams on, the gauge is good. Low beam headlights are on but right slightly dimmer than left. Had a bad left rear bulb but it is hot & right rear is on - actually rears are fine. Slowly turning dimmer on the gauge drops to 1/4 & red high beam indicator starts to glow. Turning high beams on the right low headlight beam is now out and left front is dimmer than on just low beams, high beams are good and strong. With the dimmer off, the gauge goes to about 1/4, the high beam indicator light is on, slowly turning the dimmer on, the beam light goes out, the right turn indicator comes on, and the gauge drops to below 0. The lights on the heat/air fan contol panel all work with the dimmer control as well as the dome light when it is all the way over. Any suggestions what to check now?