Please see an independent review on Benchmark here

https://www.youtube.com/watch?v=VsRxQGXbzsM

please copy/paste the address into a new page in your browser.

This listing is one one adapter cable produced by Benchmark Performance to fit your Model 3/Y

It plugs into the subwoofer and allows you to run a cable to your Amplifier or Converter, you can leave the subwoofer connected or have it disconnected as you prefer.

This makes for a very clean and reversable install, it leaves the stock loom/harness undamaged and preserves your warranty should something go wrong with your stock amplifier/cabin microphone/main computer and believe us, this can and did happen before we produced this part and with damage or connector blocks used on the stock loom Tesla may refuse to work on the car without first replacing that entire loom and the failed parts out of warranty.

We will advise you here that removing/disconnecting the stock amplifier or the ground cable next to it can cause the above failures.

This part allows you to tap into the Subwoofer signal simply and seamlessly