Well today I finally broke down and bought some xtreme dynamat today to hopefully reduce the peaker rattle behind my pioneer 3-ways, well i bought the 2 door kit for 89.99 and installed it in around an hour. After installing it i forgot to punch holes in it for the door panel to attach to but after searching i got all the holes and both doors are intalled and all i can say is WOW. It not only stopped the rattling but also made my sound a lot better, i recomend it to anyone with aftermarket speakers.

 

F150Aggie,
Now you know why I put stuff down on the floor, walls and doors Major sound improvement in stereo aspect and even better in reduction in road noise.

 

Very nice if you have a loud exhaust and are crusin on the highway.