SoonishEV Subwoofer Adapter & Wiring for Gen 1 & 2 Rivian R1S

Subwoofer Installation Kit for Rivian R1S The Tubthumper - this time for the R1S!  As car guys who like nice sounding audio, we wanted to find ways to improve the audio quality of our Rivians. After some finagling, we've come up with this kit for installing an upgraded subwoofer in the R1S. IMPORTANT NOTE: Your R1S MUST have a subwoofer for this kit to work. This means "Meridian" or "Rivian Premium Audio". If you have just the stock audio system, it lacks the needed outputs and wiring for this kit to be installed. With our kit, you end up turning DOWN the bass in the software-controlled EQ, which allows the speakers in your doors to focus just on the mids and highs, and lets the New & Improved subwoofer handle the rest. This complete wiring and installation kit integrates seamlessly with your vehicle's OEM system—no cutting or splicing required. Install Video: Click here to access the install video. What's Included: Custom-fit subwoofer adapter OEM signal adapter (plug-and-play connection) Power cable with fuse Ground wire and all connectors Complete speaker wiring Mount for amp What You'll Need (and some nice to haves): 10" subwoofer (JL Audio 10W1v3 recommended) Compact amplifier (Kicker 47KEY5001 Recommended) Remote control knob (We recommend the Kicker 46CX) Basic hand tools Sound Deadening: https://amzn.to/4qz7avt Trim Removal Kit: https://amzn.to/3QUryds VHB Tape: https://amzn.to/4nnvgbz CA Glue: https://amzn.to/433T7DG Wire Stripper: https://amzn.to/3RAkhzu Wire Cutter: https://amzn.to/3R2cV7U Lube: https://amzn.to/4woV8b2 Key Features: Works with Gen 1 and Gen 2 Rivian R1S vehicles! Professional-grade components