Those of you with subs in the trunk. - Ford Mustang Forum
 
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post #1 of 12 (permalink) Old 01-29-2012 Thread Starter
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Those of you with subs in the trunk.

Installed my new stereo last weekend and I love it! I put a single 12" sub in the trunk and it hits hard! However, I am not 20 anymore and the loud bass thing is not my cup of tea anymore. I have the amp turned down and the bass setting to the middle. This gives me a nice thump when listening to music, but will not piss the neighbors off.

One thing I have always hated is when somebody pulls up next to you and you hear metal vibrating. Well, my trunk is doing this and it drives me crazy. If I just put dynamat on the top of the deck lid, will this stop the metal vibrating sound; or do I have to do then entire trunk? This dynamat stuff is freaking expensive, so I want to stay cost effective here.

Those of you in my position, what have you done to stop the vibrating metal sound? Do I get Dynamat Dynaliner or Dynamat Extreme?


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post #2 of 12 (permalink) Old 01-29-2012
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Fake, I'm in your same shoes right now. Exactly same situation. I just put in a 2 10's yesterday and it's crazy loud and my car rattles. Part of what I need to do is put a sponge behind my license plate. I'm interested to what others have done also. Even with the amp turned down it rattles.

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post #3 of 12 (permalink) Old 01-29-2012 Thread Starter
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Fake, I'm in your same shoes right now. Exactly same situation. I just put in a 2 10's yesterday and it's crazy loud and my car rattles. Part of what I need to do is put a sponge behind my license plate. I'm interested to what others have done also. Even with the amp turned down it rattles.
I hear ya.. The only things that seem to vibrate right now is my rear view mirror and the trunk lid. If I push on the trunk lid, the vibrating sound stops. sonicelectronix has a 9.99 dynamat kit for the license plate. lol.

I'm just wondering if doing the top trunk lid will be enough since the vibrating stops when I push down on it?

Dynamat Sound Dampening | Car Speaker Installation & Accessories | Car Audio/Video Installation & Accessories | Car Audio, Video & GPS at Sonic Electronix

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post #4 of 12 (permalink) Old 01-29-2012
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I was in your same shoes. The rattling ended up coming from my spoiler. I unbolted it, made a small gasket out of gasket sealer, bolted back on nice and snug, and the rattling was gone. If you're hearing it from the deck lid area and you have a spoiler, see if it could be coming from it! If it were, fixing it would be much less expensive!
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post #5 of 12 (permalink) Old 01-29-2012
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2 10's here and my taillights rattle.

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post #6 of 12 (permalink) Old 01-29-2012
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I have a Polk Audio 12" Xi112, it shakes the whole car, I cant even figure out what rattles and what doesn't i just turn down the bass where the rattling isn't obnoxious. for the plate i just took double tape, and put it behind my licence plate. it was enough of a cushion to stop it from rattling.
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post #7 of 12 (permalink) Old 01-29-2012
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Quote:
Originally Posted by fake View Post
Installed my new stereo last weekend and I love it! I put a single 12" sub in the trunk and it hits hard! However, I am not 20 anymore and the loud bass thing is not my cup of tea anymore. I have the amp turned down and the bass setting to the middle. This gives me a nice thump when listening to music, but will not piss the neighbors off.

One thing I have always hated is when somebody pulls up next to you and you hear metal vibrating. Well, my trunk is doing this and it drives me crazy. If I just put dynamat on the top of the deck lid, will this stop the metal vibrating sound; or do I have to do then entire trunk? This dynamat stuff is freaking expensive, so I want to stay cost effective here.

Those of you in my position, what have you done to stop the vibrating metal sound? Do I get Dynamat Dynaliner or Dynamat Extreme?
The dynamat will work on the top of the trunk. Just remember the more you add the more weight it'll be. It's pretty heavy. I must have added near 20 - 30 pounds in another car of mine to get all the "rattles" to stop. I had to put it all over the lid, lights, spare wheel, everything. Have you tried placing the woofer towards the back and pointing it at the backseat first? Helps the moving air to bounce off the soft seats then dissipate through out the trunk. If you have a ported box, try to keep the woofer pointed toward the seats and the port towards the side of the wheel well.

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post #8 of 12 (permalink) Old 01-29-2012
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dont use dynamat theres stuff on ebay called phatmat and its way cheaper and the same thing
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post #9 of 12 (permalink) Old 01-29-2012
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Quote:
Originally Posted by fake View Post
I hear ya.. The only things that seem to vibrate right now is my rear view mirror and the trunk lid. If I push on the trunk lid, the vibrating sound stops. sonicelectronix has a 9.99 dynamat kit for the license plate. lol.

I'm just wondering if doing the top trunk lid will be enough since the vibrating stops when I push down on it?

Dynamat Sound Dampening | Car Speaker Installation & Accessories | Car Audio/Video Installation & Accessories | Car Audio, Video & GPS at Sonic Electronix
Hey Guys, chasing those rattles can take alot of trial and error. I have dyno matted the entire bottom and back (interior and exterior of where the tailights go), top of the trunk lid, removed my rear bumper and done along those edges, and I still am getting rattle from the tail lights and even more from the pedastal spoiler. I think I have spent close to $500 in dynomat.

Goodluck, let me know if you find a better way to keep those tail lights from making noise, perhaps using some kind of a foam would be better.

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Quote:
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Hey Guys, chasing those rattles can take alot of trial and error. I have dyno matted the entire bottom and back (interior and exterior of where the tailights go), top of the trunk lid, removed my rear bumper and done along those edges, and I still am getting rattle from the tail lights and even more from the pedastal spoiler. I think I have spent close to $500 in dynomat.

Goodluck, let me know if you find a better way to keep those tail lights from making noise, perhaps using some kind of a foam would be better.
Dynomating the whole trunk will be your best bet. Or there are other makers of deadening materials like dynomat but are cheaper
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DON'T WASTE YOUR MONEY BUYING DYNAMAT! It's not the issue.... I had the same problem and looked at the deck lid to see where it was vibrating (basically where the paint was coming off). I went to lowes and bought single side stick 1/4" weather seal and put it along the curved edge of my trunk lid and it solved the vibrating problem. Sure, dynamat will help a lot with vibrations and for better sound but if you just want to get rid of the vibration then get the weather stripping from lowes/home depot. EASY fix!

If you guys need pictures let me know!
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post #12 of 12 (permalink) Old 02-01-2012 Thread Starter
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DON'T WASTE YOUR MONEY BUYING DYNAMAT! It's not the issue.... I had the same problem and looked at the deck lid to see where it was vibrating (basically where the paint was coming off). I went to lowes and bought single side stick 1/4" weather seal and put it along the curved edge of my trunk lid and it solved the vibrating problem. Sure, dynamat will help a lot with vibrations and for better sound but if you just want to get rid of the vibration then get the weather stripping from lowes/home depot. EASY fix!

If you guys need pictures let me know!
Yes, I would like to see some pics.

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