I just, bought a 2006 cobalt, and I installed a set of 12" subwoofers and I noticed theres a lot of rattle happenining. I assume this is normal, but anyways I was just wonder if someone knew all the different places the car would rattle inside the trunk that way I could try to fix it.


Thank you a lot.
-Ben

 

what did you think would happen with 2x 12's


just layer the inside of the trunk with dynamat.

then it will be all good.

 

Well i realized that there would be a rattle, I just didn't know how much, and I was trying to figure out where it was coming from. I noticed the child restraints rattle some, but there are some other ones from the trunk that I couldnt place. Oh and so does that dynamat stuff actually work pretty good? Maybe I'll pick some up. Seems like my best bet.

 

The major one in the trunk is from a vent on the passenger side. On the rear side of the tire well under the carpet is a vent, it ment so when you close the doors/trunk the air in the car has someplace to go, so becarefull about sealing it up to tight, might be hard to get your doors to seal properly after that.
The whole decklid is a rattle factory, if you go dynamat, get the extreme but it will cost ya, if you want something cheaper try Hush Mat, its almost the same but half the price, make sure you cover both sides of the deck lid.
Certain key places in your trunk (and whereever your subs are facing) will need more than one layer, keep this in mind when figuring out how much you'll need.
Oh yeah, and don't forget the trunk lid

 

second skin > dynamat

 

thanks for all the help

 

btw, does anyone have an pictures of their trunk being dynamated?

 

hah my child restraint plastic peices flew out from my subs haha. i dont have dynomat or anything.. but if i fond a backseat down, the bass is alot better. and there isnt to much rattle.. if your outside the car however the trunk rattles like a mother ******