Amazon.com: Gravity Warzone WZ10US 10" Pro Audio Active Compact Spare Tire Slim Aluminum 1000 Watts 2 Ohm Subwoofer Powerful Loud Speaker with Bass Volume Control Knob : Electronics
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 Subwoofer Install (Non-Bose) | 2004 to 2020 Mazda 3 Forum and Mazdaspeed 3 Forums
BOSE WOOFER SPARE TYRE, Auto Accessories on Carousell
Build a Spare Tyre Sub - YouTube
Kaizen Japan Parts&Accessories - Bose Spare Tire Mount Amplified Subwoofer Bose 6inch 2pcs Rounded Speakers Bose 5inch 2pcs Rounded Speakers All Are 100% Tested Working Condition Price: PM | Facebook