Ok so I just got a Type R and a zx 400.1 installed in a custom box. Still in the breakin period but I have a major issue. The rear deck of the car rattles sooooo bad it is driving me crazy! I know that i will never completely get rid of it, but some of you guys with these massive systems must have run into this issue.

Any advice?

 

for the most part its the cover not the metal so you will need something soft to support it while it flexes. i normally recommend towels but you can also use foam and such. conventional sound dampening (vibration mats) like second skin damplifier and dynamat will help a little bit but since the main problem is the flimsy cover it wont do much

 

I used foam to cover mine. Havent tested it yet but I know its not going anywhere now.