2018+ Toyota Aftermarket Amplifier or Subwoofer Installation
Item Number: AHH-2477
This page describes the parts needed to upgrade your OEM Toyota audio system by installing either an aftermarket in-line amplifier or an aftermarket subwoofer amplifier. Both upgrades require splicing speaker wires to connect audio signals to the aftermarket amplifier. This adapter harness will allow you to make this connection without damaging/splicing OEM wires.
This "Jumper harnesses" connect between the back of the OEM headunit and the wiring that goes to the speakers. This will allow splicing of these harnesses rather than cutting or tapping factory wiring.
Newer Toyota vehicles will require the following jumper harness:
10-pin - This harness provides connections to the Front Speakers and Rear Speakers
More Toyota Models will be added Soon! (This is an incomplete list)