I just installed 2 12s in my trunk and now my trunk raddles really really bad and it makes everything sound like ****. Anything i can do to stop the raddle?

 

use a tone generator, run through different tones until you find the location of the rattle.
And kudos for noticing the rattle in the first place, it does look bad when you drive around with a thumping system and hear the car parts rattling.

 

Dynamat?