Amazon.com: JBL 11" Passive Spare tire subwoofer System : Electronics
Speaker mounted with the spare tire???????????? | Trailblazer Forum
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
Car Bose Wheel Hub Spare Tire Subwoofer Loudspeaker Master Plug Connector With Wire For Mazda Infiniti - Cables, Adapters & Sockets - AliExpress