Subwoofer that fits on top of the spare tire (Crutchfield)

I was looking at the new Spring 2019 Crutchfield ad and their technician had a write-up about how he put a subwoofer in his Mazda5.

If anybody is looking for a clean fit for a subwoofer, it's the JBL Basspro Hub, a circular 11" powered subwoofer that fits into the center of the spare tire, 200 watts RMS. Price = $400.