what have you all used on your car.
I would like to stop the massive vibrations that you can hear from the outside of the trunk. What are the main parts that the vibrations on the inside of a 4th gen come from

 

I dont know, but I can hear my 5th gen vibrating deep in the panels

 

I just bought a dynamat xtreme bulk kit for 129.99 on etronics.com. I plan on covering the entire floor with it. hopefully it will do wonders against road noise. u should definately cover the top and bottom of the rear deck and the trunk door.

 

usually its the rear deck, and check your rear license plate

 

Check license plate, rear deck, the trunk lid itself will vibrate with a lot of bass.

 

yes my rear deck is terrible ... how do you stop it

 

Dynamat the top (inside) and bottom (trunkside).