Amazon.com: Universal Replacement Spare Tire Kicker CompVT CVT10 Single 10 Sub Box 2 Ohm : Electronics
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
Spare Tire Well Speaker Box Sub Subwoofer Enclosure 10" 0.5 cuft of Ai – AK Audio
JBL BassPro Hub | 11" (279mm) Spare tire subwoofer with built-in 200W RMS amplifier with remote control.
Spare tire Ported Subwoofer Box - YouTube
Buy Spare Tire Well Speaker Box Sub Subwoofer Enclosure 10" 0.5 cuft of Airspace Online at desertcartMontenegro
Subwoofer Box as a Spare? Volume Calculations + Build - CarAudioFabrication - YouTube
Subwoofer box using the spare tire | DIYMobileAudio.com Car Stereo Forum