I need your help on a weird one.  When I have my engine running, my
headlights, foglights, radio, windshield wipers and heater fan have
no power.  Other parts of the electrical system (e.g., parking
lights, interior lights, dashboard lights, turn signals, emergency
flashers) work fine.  When I turn the engine off, and turn the key to
the "accessory" (first click) position, ALL components operate.  It's
only when I turn the key to the next position (starting the engine)
that the components noted above "cut out."
--
Ray Reinhard
'86 Westfalia GL