This is what was in my 1998 4 runner Tetanus 1. The wiring kit had the blue wire and the pioneer head unit wire was blue white. I included photos so you could see what pin on the larger connector corresponds to.
As you have to pull the wires off the factory amp and plug into them. If I am remembering correctly.
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7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread:
https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer:
https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information:
https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html