Some '03 Vert bass rattle help.....PLEASE!!!

soccerstang

New Member
May 11, 2005
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Hey everybody........quick question for you. I've got an '03 GT Convt. Upgrades musically include a Panasonic head unit, Memphis 6.5" components up front, 2 Audiobahn subs in a sealed box in the truck, all run by a 1600 watt Mobile Authority amp, screwed to the back of the box. My problem is when the bass hits, my ENTIRE trunk and sidewalls vibrate and rattle. It is SSSSOOOOOO annoying. Over the past couple of months, I have been trying to gain the knowledge to build a fiberglass enclosure into the spare tire well. I would cover the ENTIRE floorbed of my car in Dynamat extreme, then build it on top of all that. Will having a fiberglass enlosure eliminate all rattles in the trunk?? How much better would it sound? Does anyone have any advice to any websites that would be of any help in building this closure or any books to read?

Another thing.......behind the back seat, in between the trunk space, there are two metal boxes ( they look like amps) directly under the vert top. What are those? I thought those were the motors for the electric top. If they are the stock amps for the Mack 460 that WAS in the car, can I remove them without damaging any electrical components?? I could then put my 1600 watt amp right there, it would be perfect, cuz that thing is damn big.

One last thing......I am going to put on an air horn in my stang to scare all those rice burners out there to poo in their pants when I drive by. Where could I bolt down the compressor, and where should I put the horns?? I was thinking of putting the two subs in the spare tire well, then bolting the compressor on the left side of trunk, and something else (any ideas) on the right side of trunk. What do you guys think??
 
I can't get any help at all on this one??? Please guys......this rattling is so bad it's driving me crazy. I'm sure just about everyone here knows more than I do about fiberglass sound systems, therefore I need some pro advice. Thanks
 
Oh man, my vert rattled so bad....ok first I tried this ....

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That rattled like all hell, so I tried this....

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No better, so then I finally made a fiberglass spare tire enclosure and it sounds so much better. There are still a few rattles, but I have done just about everything I can. The whole trunk is dynamatted and the holes in the trunk are stuffed with carpet padding. So, it may be worth it to just go with the fiberglass.
 
I have your solution. Take out the interior lining and there are vents in the trunk that open up to the outside, not really sure why... These vents have rubber flaps on them that allow air out but dont allow water in. Every time the bass hits, the vents flap and sound like a crucial rattle. I found this problem on my old civic and glued the rubber vent shut which didn't work. I then took a small piece of plexiglass and glued it over the interior opening to the vent which completely sealed it off and the rubber never flapped again. The mustang might have one on each side but my civic only had one. Don't think you need to take off the rear bumper for it, just cover the holes from the inside. If that doesnt solve ur problem, get some fatmat @ www.fatmat.com Way cheaper than dynamat :D
 
I don't really experence ratter with mine. Maybe it's because my sub is facing up? :shrug: I've only experenced it once, yesterday, when I was showing it off to my friends and I blasted the bass and the volume. Then it ratted but, I don't listen to it that loud so I'm fine with it.
 
There's something within bass response called "cabin resonance," and has something to do with rattle when the sound waves created are the same length as the enclosure (the car). Try a decent equalizer to roll off the bass between 80 Hz and 120 Hz. This will usually take care of it. IMO