I was changing the bulbs on my fog lights last night and I plugged the passenger side in with the headlight/fog light switch in the ON position. When I did that, the drivers side fog light immediately went out. I figured I had blown a fuse and sure enough (fuse 27 - 5A) was blown. I replaced it and now my fog lights don't work and what's really weird is my headlights come on when only the parking lights are supposed to come on. I check the relay under the hood (relay 206 I believe) and that seems to be working. The only thing I can think of is something is shorted in the headlight/fog light/Panel Dim/Auto Lamp switch inside the truck. Any other things to check?