Rear Panel Sound Dampening...Please Help!!

[2.3Junki3]

A few months ago I installed 2 12" Kicker CVXs with a 2000watt mono amp. Ever since I have been experiencing loud vibrations from the plastic panel above and behind the rear seats. My idea so far involves removing the entire panel and laying either Dynomat or a thin layer or carpet then bring it to Mazda to have them replace the clips on the panel and reattach it. This is the first thing that came to mind so it may be a stupid idea. It is a brand new car and I am trying to keep it new and clean looking inside and out.

If anyone has experienced a similar problem with vibrating panels in mazda 3's please let me know how you approached it.

2.3Junki3
- '07 Mazda 3 2.3l

 

[Abaddon]

You should be able to remove those panels without damaging anything.

Take of the pieces, put your deadener on the backside (you don't need a lot) and put it back together.

Done and Done.