This rattle has been on and off annoying me for a few months. I was thinking of taking off the rear deck and taking care of that center seat belt but I was just gonna live with it and not bother with the rear deck as it's already deadened.

So today, I was moving stuff around in my trunk and I push on one of my woofers. I see it go in, I'm like what the? Peel the surround foam back and notice it's not attached all around. Play some music and it rattles.

Could this be the turning point where I go for W7(s)? Nah, I can't afford to lol.

Could both woofers be damaged? My box is a sealed enclosure with a shared chamber. They still play alright.
How can I reattach this? What kind of adhesive?

 

Check the manufacturer's website---they may sell reconditioning kits for your sub.