Model 3 SR+/RWD Speaker Unlock

With this wire harness, you can activate up to 6 inactive speakers on Model 3 SR (2019-2020), Model 3 SR+ (2019-2021), Model 3 RWD (2022+).

The work is done by connecting the front dash speakers parallel with the tweeter and A-pillar speakers to feed the signal for the speakers, and connecting the rear door speakers in parallel with the rear shelf speakers.

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For Model 3 built after 2020-03 (USA and China):
Rear-shelf speaker may not be installed on your Model 3. You can add it as an option.

For car built after 2021-06 (China):
The rear-shelf speaker placeholder has been cancelled. You cannot add the rear-shelf speaker.

Add-ons

Subwoofer Output
It requires you to purchase your own amplifier and subwoofer. The option only provide 4 extra wires with signals that come from the front left and right door woofer.

Rear-shelf Speaker
If your car is built after 2020-03, the 2x 4″ speakers in rear-shelf are missing. You can add them back by drilling 2 holes behind the grills. However, the grills are also cancelled after 2021-06 in some China built cars. If this is the case, you cannot choose this add-on. You need to get a rear-shelf assembly in order to activate the rear-shelf speakers.