A small box of dynamat is like $40 on ebay,and it's more than enough to do both doors,and rear panels. The trunk lid and speaker deck are the biggest PITA's to fix,...with the speaker deck being the hardest. I've done a lot of systems,and this car is just a nightmare to delete buzz/rattles.
Yeah i was going to say Dynamat on ebay. I love that stuff it worked great on my civic. It held true to not a single rattle with a 12 inch sub doing 133db..I would say grab it up and take some time it will pay off