Sub "dustcover" fix question

starting to give me some trouble. I was noticing some nasty sounding vibrations (I was scared I'd already blown a door speaker) but traced it back to my sub. I'm convinced it's the dustcover mounted over the cone.

A small section of it is starting to come unglued and vibrate like a bad alarm clock. I've heard I should use some silicone substance to fill the space & glue it back down. I think it comes in a tube like caulk. Does this sound right?
Forgive my lack of knowledge to sound equipment maintenance. I'm definitely a noob in this section. Please post pics of any product I could use to fix this problem. Thanks all! Cheers.
Last edited by dragonrage; Aug 18, 2011 at 02:14 PM.


