Amazon.com: JBL 11" Passive Spare tire subwoofer System : Electronics
Bose Spare Tire Speaker Subwoofer | eBay
Build a Spare Tyre Sub - YouTube
Boost your factory Bose Subwoofer for $20
JBL BassPro Hub | 11" (279mm) Spare tire subwoofer with built-in 200W RMS amplifier with remote control.
Bose system and spare tire - 6SpeedOnline - Porsche Forum and Luxury Car Resource
Speaker mounted with the spare tire???????????? | Trailblazer Forum
BOSE WOOFER SPARE TYRE, Auto Accessories on Carousell
Bose Subwoofer Spare tyre / Box-Subwoofer Build In Amplifier ( Made In Mexico ) | Lazada
JBL Stadium BassHub Passive sealed enclosure with 11" dual 4-ohm voice coil subwoofer — mounts to hub of spare tire at Crutchfield
JBL BassPro Hub Powered 11" subwoofer enclosure with 200-watt amp — mounts to hub of spare tire at Crutchfield
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