For those of you who want more bass but don't want to sacrifice your spare tire or hatch space, I highly recommend this spare tire mount subwoofer : r/GolfGTI
Spare tire fitted after almost 3 years of owing my R. : r/Golf_R
Part #000051419 unboxing vid (VW / Helix Spare tire soundbox) | Page 3 | VW GTI MKVI Forum / VW Golf R Forum / VW Golf MKVI Forum / VW GTI Forum - Golfmk6.com
VPSTX12 Installation - YouTube
Volkswagen Soundbox Bluetooth Subwoofer | VW Service and Parts
500W Subwoofer System | Stealth GTI
Product Spotlight: JBL BassPro Hub Subwoofer System
Installed a spare tire subwoofer in my GTI : r/GolfGTI
SOLD......JBL BassPro Hub 11" Spare Tire Subwoofer w/ Built-in 200W Amplifier ***$300*** | GOLFMK7 - VW GTI MKVII Forum / VW Golf R Forum / VW Golf MKVII Forum
Amazon.com: Rockville RockGhost Active Powered 8" Hidden Car Subwoofer Sub For 15"/16"/17" Full Size Spare Tire : Electronics
OEM 11-20 Volkswagen Spare Tire Mount Subwoofer Soundbox Jetta NEW 000-051-419-B | eBay
Amazon.com: CERWIN Vega 600 watts Active Spare Tire Application Subwoofers Series (VPAS12ST) : Electronics
Alpine - SPC-600G7 Subwoofer System for VW Golf 7, Golf 6 and others
Genuine Volkswagen Audi - 000051419B - Spare Tire Mount Subwoofer Retrofit Kit (000 051 419 B)