Subwoofer vibration/rattle problems?

Question

I already know 9 out of 10 of you will answer dynomat before even reading the rest of it but here it goes...

i just got my first car and its a 2005 chevy cobalt. this is the second car i have put a sound system in though ( i put subs in my brothers car while he was at college) but anyways the trunk doesnt rattle too bad from the outside, however i have ANNOYING INTERIOR RATTLES. i dont know if dynomat can help that problem. i stuffed a towel where the windshield meets the " back dashboard" whatever is above the back seats is called. but that whole part the "back dashboard" or whatever the h**l its called rattles like crazy. please help

Answer 1

HAY THAT EASY TO FIX  .....IS YOUR SUB WOOFER BOT TO THE CAR THAT HELP ..OR YOU NEED A BLEACHER

Answer 2

Chuck norris will help you, give him a call

Answer 3

what ever you do. DO NOT get dynomat....it sucks!

i had it installed in my sti because i had alot of trunk rattle and it didnt do anything.

i spent a god awful amount to fully coat my entire car and i didnt notice almost any differnce. try getting an apoxy or caulk and taking off the pieces you can take off. caulking them and placing them back.

-apoxy

-hot glue

-caulk

anything that can make an air tight seal pretty much

Answer 4

I had the same problem...I tightened up all the screws and still had a lil rattle what i eventually did was get rid of the rear speakers which kind of ported the trunk and problem solved

Answer 5

Sound deadening material will help by putting weight on your back deck.Or maybe you can hide some screws through your back deck into the metal.You could also try a 2 part liquid foam or expanding hole filler like the Right Stuff.