I did the fog light mod today on my one day old 2011 Tacoma. Mod was very easy, got the mod info from this site. I experimented first by just shoving wires in connectors and bending post on relay. Worked great, so I wired up permantly.
Mod lets you turn fog lights on at anytime, not just when head lights or low beam headlights are on !
Great site, great info.
2011 Tacoma, TRD off road w/JBL.