Feature:1. Applicable Model: The speaker activation wire harness is a replacement for Tesla Model 3 2019‑2020, please check the model and year before ordering.2. Activate Speakers: The original car can only use 8 speakers. With this wire harness, you can activate the 6 inactive speakers on (only 4 in post March 2020 build) cars.3. High Performance: Designed with stable data transmission and lossless sound quality cable to give you a better listening experience, pleasure of being surrounded by music.4. Fine Workmanship: The upgraded wiring harness does not require additional processing, the wire is thicker, the resistance is smaller, the sound effect is improved.5. Non Destructive Installation: Designed according to the original car interface, and can be inserted directly into the interface. Installation is simple and without any damage.Specification:Item Type: Speaker Activation Wire HarnessMaterial: ABSFitment:Replacement for Tesla Model 3 2019‑2020.Package List:1 x Screw Spanner1 x Disassembly Wrench1 x Speaker Activation Wire Harness