Custom Speaker Box + Alpine Sound System Install | LS RX-7 Build

The RX-7 has come a long way, but there was one thing missing... an audio system that matched the rest of the build. In this video, I design and build a custom subwoofer enclosure from scratch and install an all-new Alpine sound system in my widebody LS-swapped Mazda RX-7. The goal was simple: create a clean, factory-looking install that still hits hard without sacrificing valuable hatch space. From measuring and building the enclosure to wiring the amplifiers, tuning the system, and hearing it for the first time, you'll see the entire process—along with the mistakes and lessons learned along the way. If you're looking for ideas for your own custom audio build, hopefully this gives you some inspiration! If you enjoyed the video, make sure to: 👍 Like 💬 Leave a comment 🔔 Subscribe so you don't miss the next RX-7 build video! Follow us on social media for behind-the-scenes content: Instagram: @zerotoawesome #MazdaRX7 #LSSwap #CarAudio #Alpine #Subwoofer #DIY #Widebody #Mazda #CustomFabrication #ZeroToAwesome Parts used in this video: Head uint: https://www.amazon.com/dp/B09ZVQ2NMM?... Rear view camera: https://www.amazon.com/dp/B078PF4GJC?... 4 inch speakers: https://www.amazon.com/dp/B0C74WLC74?... 6.5 inch speakers: https://www.amazon.com/dp/B0BS9DTKGQ?... Sub & amp: https://www.amazon.com/dp/B0CLJW68WQ?... RCA cables: https://www.amazon.com/dp/B07Y5RCFBZ?... Plastic trim: https://www.amazon.com/dp/B07MT4WNP7?...