OK... I am going to try disconnecting the brown wire. One interesting thing I notice about the socket that housed the bulb I pulled out. I can see and smell burnt plastic. The connector in the socket is also somewhat browned... it appears from burning. So it appears that is where the short is? On the other hand, the bulb appears fine.
One concern I have is your comment on sealing of the lamp assembly... does that mean I eventually have to seal the assembly?
What I meant about the headlights was that it appeared to be working normally (when the fuse is not shorted)... that is, I can turn it on and off including the parking lamps... When I turn it on during the daytime, the radio clock is hard to see.
Back to work now... that is, poking around the car