Ok, so the rattles in my trunk are getting so annoying...

I get so much trunk rattle and can't seem to get rid of it. The most annoying of which is the rattle coming from the Tail light assemblies. They sound horrible and can't figure out a way to get rid of it. Also the trunk lid rattles horribly bad.. Here's what I've done and tried...

Removed the rear access
Dynomatted the whole trunk and fenders all the way up to the rear pillars.
Dynomatted the trunk lid
Dynomatted around the seal of the trunk
Dynomatted rear deck
New trunk moldings
Faced the subs different directions
2 up one front, 2 front 1 up (by design of the box the only way to do it.)
Pulled the subs all the way to the back (in both configs above)
Put them all the way forward (in both configs above)

The car is to the point where it's sound proofed enough that you can only hear the bass outside when you stand in front of the car and now that everything is deadened in the back you only hear trunk rattles if you stand behind the car.


I don't want to hear TURN IT DOWN, Not to mention even at pretty low volumes these vibrations occur although not as extreme.

I'm going to use expanding foam in all the panels soon but am out of ideas for the rear lights and the trunk lid.

I've seen some other people on these forums with pretty sick setups like mine and they say they have no rattle at all... So how did you do it?? Cause the car by itself couldn't possibly do this.

 

yea i have the same problem and would love to find a way to fix it.

 

oh, easy...just stuff some cardboard on the edge of the trunk and close it! it'll keep it tight enough that it wont rattle ^^ no jk, i really dono what u could do for both.

 

...cardboard...i've heard a rumor about that but didnt think that it actually worked. i'll have to try that!!

 

hmmm... that's odd that your trunk rattles so much. Have you secured the bottom part of the license plate holder? That little badboy rattles like crazy, no matter how much dynamat you have.

I'm surprised you're having such problems though. what are the boxes made out of?
I've got 2 subs in my car as well and I imagine your trunk looks a lot like mine:

 

How much dynamat did it take to do you trunk.



U1cracka

 

Keep in mind, I also did the top of the trunk so as to not rattle off my MS wing.







when all was said and done, I think I pretty much went through an entire bulk package of dynamat extreme. (bulk pack available @ www.discountjungle.net)

 

My trunk pretty much looks like yours, full bulk pack of Dyno Extreme... The box is 3/4" MDF

Here are pics of my setup.

https://www.rx8club.com/series-i-interior-audio-electronics-24/my-audio-setup-pics-96819/