Fixed: Subwoofer rattle at the subwoofer enclosure!

[SQ5-4RiNGS]

So I opened the rear tailgate and was wondering why the rear floor was rattling? I pulled the cover back and the sub enclosure was rattling in the spare tire (never touched it before).

I tried putting 10 little rubber stoppers for kitchen cabinets down in the sub where the hole is in the middle. I screwed the middle thing down and it moved the rubber stoppers from where they were, but rattle stopped.

So I was wondering what I could use instead. I got creative went to Lowe’s and got a rubber washer. I put it on the metal shaft of the thing you screw down to make the sub stay where it’s at, and voila, no more rattle and bass seems better sounding.

Why Audi leaves sub kind of loose when the thing is screwed all the way down is beyond me?

[Stubek]

I know by B8 Avant has a similar design for the sub and that has a felt "grommet" that acts as the vibration dampener. As long as it is tight, never has a problem.