Hmmm....When I wired up my fog lights (in place of the round running lights) I used Moncha's auxillary fuse box write up, fog light install write up, and his factory switch diagram and everything seemed to work fine for me. Maybe I got confused at some point and didn't follow his wiring diagram 100% and that's why things are working, and have been for three or more years now.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless