digitalcohabitat

Hey man, Nice setup you’re working on! Those L7 15s are going to hit hard. 🔊 For your ’95 4Runner 3.0 V6 (3VZE), you generally don’t need a PCM bypass or boosted harness, since your truck doesn’t use a PCM-controlled charging system — the alternator’s voltage regulation is handled internally. Those bypass/boost harnesses are more for newer vehicles (2000s and up) where the PCM monitors or controls alternator output. So, you can just go with the high-output alternator from Crystal Audio Solutions and wire it up normally — just make sure your “Big 3” upgrade (battery-to-chassis, engine ground, and alternator-to-battery wiring) is done with good gauge wire. That’ll keep voltage stable when you’re pounding bass or running off-road lights later on.