how can i make the metal on my truck stop rattling from my subwoofers?

[Josh]

I have 2 12" subwoofers in my truck. they sound good only the back wall of my truck's cabin rattles and it sounds crappy. how can i make it stop rattling?

 

[draco19]

Dinomat or any sound deading material

 

[D]

Get rid of the subwoofers. If they annoy you, think about how much they annoy everybody else. Do you have any idea how irritating it is sitting in traffic next to some deaf brain dead douche who thinks he has to prove something with his giant speakers?

 

[DimoJ]

Eastwood.com has the answer, for any car problem....
http://www.eastwood.com/eastwood-thermocoustic-material.html