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I've seen a lot of you guys with awesome systems, but do yuor subs make your car rattle alot. I own a 92 and don't want any rattle but to still have some bass. I think ratlling sounds like shit. The only solution I have found is to use dynmat and that looks good. Should I not worry about rattling or what. please help
 

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If you're subs hit like mine, you will need to use some kind of rattle-reduction material. The license plate is one of the most notorious rattlers. The second most notorious would probably have to be the trunk lid.
I didn't use anything but I would have if I were to keep my car.
I agree, rattling sounds like complete shit and ruins the whole experience of having subs.
 

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If you're going to install a system that kicks, you will have rattle - bottom line.

What causes rattle WITHIN the car is the rear deck, like rj mentioned. The license plate also causes some rattle, but you could put foam trim around that. Outside rattle is there - and a lot of it.

But the point of a sound system is to hear it from the inside, not outside. So if it rattles outside, it shouldn't matter.

If you want to get rid of the rattle within the car, the Dynamat won't do the trick. I have Dynamat and it hardly does anything.

I'm looking into things to eliminate the rattle.
 

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It's annoying as crap when someone drives up to you with a system and it sounds like their car is going to fall apart.
You don't even hear bass, you hear rattle.
As for rattle in the inside, I didn't hear any, except for when the whole rear deck where the speaker grills are would bounce up and down heh.
 

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yeah man i have a 92 and i put two 12's in the trunk and the mother almost fell apart from so much rattling. the biggest culprit was the license plate so i used clear silicone and glued the shit on to the body. now the only thing that shakes is the locking mechanism in the trunk. trust me that is what is causing it, and i still can't figure out how to stop that from rattling.
 

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i had the same problem too, my trunk was rattling real bad. It was mostly the license plate so on the plate screws(in between the plate an the car) i put some little rubber stopper like things. They completly stopped the plate rattling, now the only thing that rattles is the locking mechanism. Anyone now how ta sound proof that thing?


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Yep, that's the thing - the auto trunk locking mechanism. If I ever do find a solution, I will let you all know - I plan on going around to some auto specialists to see what can, if anything, be done. Maybe get rid of the trunk release completely :) (I don't even use the trunk since the subs take up most of the space).
 

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Well I don't know about the rest of the rattles but I had the back lid behind the rear seat holding the rear speakers rattling real bad so I got a can of expanding foam used it to fill up some of the space between the metal plate in the trunk and the top plate that holds the speakers. It worked real well, still a few rattles but not nearly as much as before.
 

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Oddly enough but check this out. When I installed my custom boxes I noticed that (and you might too) the drivers side Rear bumper rattles like a bastard. If you look closely there's an Air Vent on the bumper from inside the trunk. My conclusion is that air from the bass is leaking out through the vent and causing that side of the bumper to vibrate like crazy.

Here's what to try and patch up best you can:
1) LICENSE PLATE (definite - put more screws in (i did))
2) Rear deck (reinforcing helps - bit of a pain)
3) That rattly bumper from the vent output for the climate control.

Bottom line - banging system will always cause vibration WHEN configured for the best sound. The movement of air is what causing low frequency tones, reasoning for 15" subwoofers making serious bass while 8"s simply punch. The best way to get rid of outside vibration is to get the AIR out of the trunk. Easiest way to do such is to position your subwoofers as close to the REAR seat and put the seats down. However, the SPL are SEVERLY decreased and the sound just sucks. So in order to get the best sound in the interior, the air must reflect off the rear of the trunk (BANG VIBRATION OUTSIDE) and come back into the interior. Sorry but that's just the way bass tones work.

Good luck with the dynamat btw. If you have the money then it's all worth it.

Just my 2 cents.
 

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Does anyone know how to properly get rid of the ratteling on the rear deck? I want to pop it out so I can put some foam inside to stop the rattling, but how do I pull it out?
 

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My new rear deck project starts this weekend. What I plan on doing is using some left over Dynamat original and coating it with some. Next I'm going to build the new deck out of 1/2" MDF (for rigidity) and bolt the metal deck to my new wooden board. It'll have cut outs for the seat belts, stock speaker locations, and back vent. I'm also going to port some holes in it for the subwoofer air movement. I'm hoping all this will truely fix my rear deck rattle and it should. I already bought some custom speaker carpeting that closely matches the stock. I'll post some pics up throughout my project.

As for removal of the stock rear deck it's fairly simple.
First remove those plastic "screw-like" things that show from up top the rear deck but turning counter-clockwise.
Then remove all the plastic seat belt trim (optional) by pulling up on the side closest to you and then pulling the piece towards you.
Do the same for the rear brake light.
Next, put slight pressure from underneath the rugged rear deck so that the plastic push pins bang out. Start from the center and work your way out.
To get the thing out you have to push down on the edges (left and right) because the plastic trim pieces on the side of the car go INTO the deck. It's kind of hard to explain but when you push down on it the pretruding part of the trim pieces will come out of the rear deck rug part.
When you've down that on both sides, you should have an upside-down "U" shaped rear deck...now just pull it towards you and it'll come out.

It's really not that hard...just go for it! There might be an easier way but this is what I usually do. Sorry if it's not very descriptive. Good luck. tell us how the "foaming" goes.
 

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I worked on my rear deck today. I said I was going to foam up the inside and stuff but I didnt do that. I did something much easier which stopped the rattling completely. I took these 4 L shaped metal things which are like 3 inches long and put them inside the deck, between the metal part of the deck and the actual deck itself. The rattling seemed to have stopped...thats all I wanted, job done. :lol: thanks
 

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you have definatley gotta use some dynamatt. i had 4 subs in my trunk. the best thing to get of rattling is to have someone sit on ur trunk.:D worked best for me
 

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The main thing that rattles in our cars is something hitting up against something else, for example the rear deck. The wood deck sits on top of the metal chasse and those two rattle when the bass hits. How is dynomat going to prevent these two from hitting up against each other?
 

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Like I said before, Dynamat doesn't do shit for the rattle :).

I have it and it DOESN'T HELP.

I will work on the rattle this weekend, using Koojo's and rm's advice.
 

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Ya just put something solid between the actual rear deck and the metal chasse to keep the deck from rattling, thats pretty much all you gotta do. Good luck man.
 

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I can't figure out how to take out that rear deck? When the seats are down, there are still the soft pads on the sides which prevent the deck from sliding out. I tried to pull on the pads but they dont want to come off and I dont want to rip them off. Anyone know how to take that out?
 

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Koojo what exactly did you put in the rear deck? Do you have any pictures for us to see? My rear deck rattles like a mutha and I wanna get rid of it quick!!!
 
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