Enhance your **Tesla Model 3 (2021)** audio system with this **Speaker Inactive Activation Wire Harness**, designed to **unlock additional speakers, improve sound quality, and ensure stable audio transmission**. This easy-to-install upgrade **maximizes your in-car audio experience**, delivering **richer, more immersive sound** without compromising the original system. 1. **Perfect Fit for Tesla Model 3 (2021)** This **speaker activation wire harness** is specifically designed as a **replacement for Tesla Model 3 (2021)**. Before purchasing, please **confirm compatibility** to ensure a perfect fit and seamless installation. 2. **Unlock Additional Speakers for a Fuller Sound Experience** From the factory, the Tesla Model 3 only **utilizes 8 speakers**, leaving several inactive. With this harness, you can **activate 4 additional speakers** (for models manufactured after March 2020) and even **add 2 more inactive speakers**, significantly enhancing your vehicle's **audio performance**. 3. **Superior Sound Quality Upgrade** This **upgraded wiring harness** features **thicker, low-resistance wires**, ensuring **improved conductivity and enhanced sound output**. With **no need for additional processing**, this harness delivers **several times better sound quality**, providing **a richer and more dynamic listening experience**. 4. **Stable & Lossless Audio Transmission** Using **the same high-quality audio cables as the original Tesla system**, this harness ensures **stable data transmission and lossless sound quality**. Enjoy **crisp, clear, and powerful audio**, just as the artist intended. 5. **Easy Installation & Seamless Upgrade** Designed for **simple plug-and-play installation**, this harness allows you to **upgrade your audio system without any damage or modifications**. In just a few steps, you can **transform your in-car sound system** and enjoy **a more immersive listening experience**. Upgrade your **Tesla Model 3’s** audio system with this **Speaker Inactive Activation Wire Harness**, offering **seamless speaker activation, improved sound quality, and effortless installation**. A must-have for **any Tesla owner looking to elevate their driving experience with superior audio performance**!