Hmmmm . . .

I was driving home this evening and, when the headlights turned on
automatically due to the diminishing light, the display on my stereo
turned off.  So did the display on the climate control.  Upon further
fiddling I discovered that the fog lights no longer work at all.  When
I turn the headlights off, the displays come back on.  Interestingly,
the backlight behind the odometer display is on when the headlights or
off and visa versa.

I checked the fuses in the passenger and engine compartments and
didn't find one that was blown.

Coincidence-- Last week I had my front bumper replaced as a result of
a fender bender.  I have driven at night since and the problem
definately wasn't present then.  If this problem were related to the
body work I would think that it would be something along the lines of
a short, which should blow a fuse.  I wouldn't think that an open
would cause the symptoms I see.

I have a strong electronics background, but without a wiring diagram
I'm in the dark, so to speak.  :-)

So do I take it to the shop or use this an an excuse to pop for the
official manual @ approx $200?