Hi guys. I recently put in 2 Audiobahn 12" 400 watt RMS subs, with an Audiobahn amp, and the new JVC ksh-55 head unit. I got a custom made box put in the drop down section of the trunk (t-roof car). I have the subs angled cone down, into the box. (magnet up.) I am having big trouble with vibrations of my licence plate, drivers side mirror, plastic tire compartments, and the trunk lid (power pull down motor). I'm sure others have had this problem, and I would really appreciate it if you could point me in the right direction of solving this problem.

Thanks

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89 Camaro RS
305 TBI
K&N Filtercharger
3" Catback Exhaust
Flowmaster Muffler w/ 3" Chrome Tips
17" eagle alloys
Yokohama Avid H4 255/40
Stage 2 shift kit
GT formula steering wheel
MSD 8.5 mm Heli-core ignition wiring
2 Audiobahn 12" subs
more coming soon...

 

I have an 87 firebird and i had a similar problem. what i did was i stuffed polyester filling (the stuff they use for stuffed animals) in all the spaces that rattled. that cut down the rattling by at least 60% for my car.

 

You might want to consider using a sound deadning material and deaden your trunk and other parts of your car with it. I just got done deadning all the panels in my trunk and the metal in the trunk. I can't say mine won't rattle because my subs aren't in yet but I think it might be a good idea for you. There are fairly inexpensive alternatives out there.

 

Dynomat is good for situations like this.

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No License, No Hope.

FILTERCHARGED BABY
http://www.crushed.org

 

The license plate is the most common rattle. Wedging a hunk of foam or sponge behind it usually works well.

 

yea... and that looks good too...

:P im just kiddin.

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No License, No Hope.

FILTERCHARGED BABY
http://www.crushed.org

 

What do you have a transparent licence plate ? I've had a folded up rag behid it for the last two years. Nobody has any idea it's behind there...

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1991 Z28 5.7 TPI

ZZ4 heads, ZZ4 cam, Harland Sharp roller rockers, Accel base, SLP siamesed runners, 52MM SLP Throttle Body, Hooker Headers, Flowmaster catback, MSD6A ignition, Home made ramair system, aluminum driveshaft, WC 5-speed etc

 

You could also try some foam tape. You can get it at Ace Hardware. Should be by the door weatherstripping.

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1984 Camaro Sport Coupe - Rebuilt 355 S/D TPI L98, Crane 2032 CompuCam, Crane adjustable fuel pressure regulator, MSD Blaster coil, custom burned PROM, stock TPI intake, Accel 24# injectors, gutted air box with K&N filters
F41 Suspension Package, 700R4 Tranny, TCI Breakaway torque converter, 3.27 Posi Rear
Hooker Shorty Headers, Catco High-Flow 3" Cat, Flowmaster 3" American Thunder Cat-Back

Best 1/4 Mile Run:
13.847 @ 95.91 MPH

1992 1LE B4C Police Camaro RS - 305 TPI 5-Speed