Off the rack subwoofer box perfect fit in spare tire well - Rennlist - Porsche Discussion Forums
Custom Invisible Subwoofer Enclosure for Your Spare Wheel Recess : 5 Steps - Instructables
Fiberglass Spare Tire Well Box - Jim's Site
Ford Excursion Subwoofer Enclosure - Spare Tire - SRQ Customs
Custom Invisible Subwoofer Enclosure for Your Spare Wheel Recess : 5 Steps - Instructables
Universal Replacement Spare Tire Well Alpine R-W10D4 Type R Single 10 Sub Box 793276040527 | eBay
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
Builds: 350Z Spare Tire sub Enclosure Part 2 | AnthonyJ350 - YouTube