Active spare wheel subwoofer spare wheel well 2 x 8 inches ,1 piece | Fruugo NO
Nakamichi 15" 1200W Spare Tyre Active Subwoofer NBF150A - Nakamichi SA
Système audio de voiture amplificateur de haut-parleur de graves à double woofer en aluminium alimenté Subwoofer actif de la roue de secours - Chine Système audio automobile, caisson de basses pour voiture
CERWIN VEGA VPAS12ST 12INCH ACTIVE SPARE TYRE WHEEL SUBWOOFER*SAVE THE SPACE* - Driving Sound
Kenwood 10" Spare Tyre Subwoofer / Amplifier Package – InCarSolutions.com.au
Cerwin Vega 12" Active Spare Tyre Wheel Subwoofer 150W RMS - VPAS12ST | Supercheap Auto New Zealand
JBL BassPro Hub | 11" (279mm) Spare tire subwoofer with built-in 200W RMS amplifier with remote control.
OEM Audio Music System Under Seat Subwoofer Powerful Active Speakers 500W Car Audio 12V Dual Car Spare Tire Subwoofer for 15/18 Inch Wheel - China Pioneer Subwoofer, High Power Subwoofers | Made-in-China.com
JBL BassPro Hub 11" Spare Tire Active Subwoofer Car Kit - 300 Watt Spare Wheel Housing Car Subwoofer with built in Amplifier and Fiberglass Woofer : Amazon.co.uk: Electronics & Photo
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