Headlights, Tail lights, Side Markers, Help needed.

[Big Daddy]

have a 1999 Boxster Base model. I have a few questions all relating to the lights on this vehicle. The closest Porsche dealer is 200 miles away and the local import shops wont touch a Porsche accept to change tires and oil.

1. When the ignition is off and the light switch is in the on position and pulled out for fog light only the right side front marker comes on, with the light switch pushed in the right headlight and front side marker are on. When the ignition is in the run position the front headlights are on and the side markers are on as well. Is this normal or is it an indication of a problem?

2. My left brake light was not working so I replaced the bulb. Now both my brake lights and my reverse lights work on the left and right side. However something strange happened. Now my left rear running light and side rear marker light are not working. These do work on the right side. On the right rear my fog light does not work but it does work on the left side. I have replaced all of the bulbs. I would fathom a guess that there is a common link between all of these lights that are now not working and "it" has gone bad. If any out there can help me trouble shooting this I would greatly appreciate it.