eclipse rattle

ok here's the thing I installed my system and it sounds like a champ on the inside but the bass from the outside of the car makes the worst rattling noise ever and I don't know how to fix it, any suggestions?

Dynomat

It might be your hatch rattling. Did you try to isolate the source of the rattle? You can always tighten the hatch if that's the problem.

Soon your windows will start to rattle. If you just got your system, then I will give you another 3 months before you notice it. After I put my system in, about a month later, I started to get the window rattle. You might want to look over this.
http://www.dsmtalk.com/showarticle.php?threadid=90915