In JA's version of the mod, pin 2 of the fog relay is connected to either the IG relay (pin 1) if you have an SR5 or Sport, or tapped off the 25A seat heater fuse on the limited.
Toyota 4Runner Independent use of Fog Light Mod
If you are only interested in defeating the fog/high beam interlock, then you only need o connect the blue (or red/green on 06+) jumper wire in on the headlight stalk to chassis ground (white/black in the drawing above).