2009-2019 370 Z BOSE SUB WOOFER SPARE TIRE MOUNTED With The Wheel And The Tire | eBay
How loud is the Bose subwoofer? - YouTube
JBL Stadium BassHub Passive sealed enclosure with 11" dual 4-ohm voice coil subwoofer — 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