Quality Car Active Spare Tire Subwoofer Amplifier Trunk Tire Bass Speaker For Car Audio Pure Bass Aluminum Shell Woofer 20-150hz - Subwoofers - AliExpress
JBL Stadium BassHub Passive sealed enclosure with 11" dual 4-ohm voice coil subwoofer — mounts to hub of spare tire at Crutchfield
Sennuopu Car Subwoofer Class Ab Power Amplifier Bass Speakers Aluminum Box Active Sub Woofer Install On Spare Tire Audio System - Subwoofers - AliExpress
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
Ford Excursion Subwoofer Enclosure - Spare Tire - SRQ Customs
Car Subwoofer: Active Car Spare Tire Subwoofer, High-power Shock, Heavy Bass Modification, Special Ultra-thin Speaker - Temu
11" JBL BassPro Hub Subwoofer Install in 1991 Fox Body Mustang (Spare Tire Well Sub) - TIPS05E48 - YouTube
5 Best Spare Tire Subwoofers of 2023 | Spare Tire Sub Review