Rep Power: 0

i think the rear seatbelt assembly's or them actually vibrating against something is causing some bad noise when i crack up the subs. i only have 2 JBL 10" with a 300.1 amp, and 1/3 of the way up, i can already hear alot of vibration.

any suggestion to prevent this?

 
Rep Power: 812

I have everything back there dynamatted and foamed--I still hear the rattle. I think it's internal to the middle seat belt assembly. Nothing you can do.

 
Rep Power: 0

expanding foam and/or fiberglass will help... its also the rear deck hitting the window... i carpeted my rear deck and it all went away

 
Rep Power: 328

Yup...my rear deck is carpeted, and there is abosultely no rattle back there....the other thing i've done on some of the NE members cars is use 3/4 foam weather stripping on all the edges of the rear deck that come into contact with the window. That does work, but not as well as the carpet.

 
Rep Power: 0

yeh i used a thin gasket along the window and back deck, i actually took out the back seats, all the panels, including the back deck. all was left was bare metal, and you could still hear alot of vibrations.

i guess nothin to fix it

 
Rep Power: 394

What kind of carpet do you use, where do you get it, how does it match, and how did you do it. I have some 3M spray glue that would probably work. I know I saw a thread about it a long time ago, and saw a pic of WhiteRabbit's deck, and never PM'ed him about it.

 
Rep Power: 328

Go to a car audio shop, or a car upholstry shop....tell them what you want to do, show them a sample of your carpet, then they should be able to find you a match

 
Rep Power: 0

so u carpetted the bottom of the deck, or the top part of the trunk? and what kind of foam did u spray and where?