It never seems to fascinate me that the easiesy mod to perform(well beside putting on the FF.com sticker) topic comes one at least once a month. It's even well documented at FF.com and myfordfocus.
Ha, that picture looks strangely familiar! For those who have tried this and it didn't work, you probably did either put the wire into the wrong place(s) or perhaps you were expecting the mod to be something it isn't? It allows you to turn on the fogs when you have only the parking lights on, and to have them on when the high-beam headlights are on. That's it, nothing more. [???]