For those with subwoffers....

Where are you guys putting dynomating at on the car? i want to get some in there because my one 12 is rattling my trunk like a mother..

 

https://www.cobaltss.net/forums/electronics-audio-video-49/j-rayths-3k-system-install-99726/

 

honestly it should go every where, check out the 3K install thread, if you are looking to just do the trunk i would say the top and bottom of the rear deck x 2 layers with a layer of closed cell foam on the top. the entire floor, rear quarters, and a couple layers on the lid. also try to isolate whatever is actually rattling, and put extra there. mat is a mass loader, the more mass (weight) the more the resonating frequency is changed. keep in mind you will never kill it all, if you go extreme you can get most of it (i know people who have used lead mat the weighs pounds per foot, keep in mind they compete)

you might also want to try moving the sub around, you will find different sound response in the cabin vs. outside sound by firing forward, backward, to the side etc.

 

Ok this might sound lame but how do i get my rear seats to fold down. This is an amazing design! i dnt see a lever or anything,.

 

The lever is in the top of the trunk

 

Soundkiller goes all over son...