Focus on power, ground, ACC, and the four main speaker pairs. Leave the CAN bus wires (Yellow/Green and White/Blue) alone unless you are doing a full OEM integration.
If you’re searching for a Toyota 86120 wiring diagram PDF , you’re likely staring at a factory amplifier or a navigation unit pulled from a Camry, Highlander, Tundra, or Lexus. The "86120" is Toyota’s common part number prefix for audio amplifiers and navigation ECUs. Toyota 86120 Wiring Diagram Pdf
Have a specific 86120 diagram you want me to decode? Leave the full part number in the comments below! Focus on power, ground, ACC, and the four main speaker pairs