Features: 1.Applicable Model: The speaker activation wire harness is a replacement for Model 3 2022, please check the model and year before ordering. 2.Function: The original car can only use 8 speakers, with this wiring harness, you can activate 4 inactive speakers and add 2 additional speakers to give you more wonderful music enjoyment. 3.Improved Sound: Inactive speaker activation harnesses transmit otherwise ignored audio signals to the speaker, boosting audio and making music more beautiful. 4.Enhance Driving Experience: High music effects can improve the driving experience, and can bring a more comfortable driving experience when long distances or in traffic jams. 5.Fine Workmanship: The wiring harness does not require additional processing, the wire is thicker, the resistance is smaller, the sound effect is improved, and it is safer. Specification: Item Type: Speaker Activation Wire Harness Material: ABS Fitment: Replacement for Model 3 2022 (Only for left hand drive) PackageList: 1 x Screw Wrench 1 x Disassembly Wrench 1 x Wiring Harness