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
JBL Stadium BassHub Passive sealed enclosure with 11" dual 4-ohm voice coil subwoofer — mounts to hub of spare tire at Crutchfield
How loud is the Bose subwoofer? - YouTube
Spare Tire Subwoofer Install (Non-Bose) | 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums
Bose Spare tire subwoofer orig!, Car Parts & Accessories on Carousell
JBL BassPro Hub | 11" (279mm) Spare tire subwoofer with built-in 200W RMS amplifier with remote control.
Dave Michels on Twitter: "Bose subwoofer in the spare tire of the Infiniti EX. Clever. http://t.co/qQT0WlTEX9" / Twitter
Bose Subwoofer Inside Spare Tire Mount for Sale in Hialeah Gardens, FL - OfferUp
Bose Spare Tire Speaker Subwoofer | eBay
JBL BassPro Hub Powered 11" subwoofer enclosure with 200-watt amp — mounts to hub of spare tire at Crutchfield
Spare wheel Bose active subwoofer | By Japan Used Car Acceseries | Facebook
Bose Spare Tire Subwoofer in Toyota Avalon - YouTube