Well I got my s/c, supra injectors, and IK22s installed yesterday. Now all I need to do is hookup my safc tuner. I'm having difficulty figuring out which wires I need to tap into and exactly which wiring plug set behind the glove box I use as well. I have posted some pictures of the wiring plugs behind the glove box.

 

Havent installed one on a 4Runner but the only 4 wires you really need to find there is Mafs in, Mafs out, TPS, and RPM on top of ignition & ground. Zero your in and out unless you have another MAFS. I'd look at the FSM for the pin-out's!