Ok so i would like to finally get rid of the rattles in my car from panels and etc and deaden them and get rid of a little road noise from the doors. I have looked at sound deadener showdown, it seems like the guy knows what he is talking about and makes quality stuff, but i would like some advice on what brands to also look at and what material to use and how to deaden my car. I want to deaden my trunk, where most of the rattles come from. My components like to rattle my front doors when i turn it up enough to get some good midbass, so i want to stop the panel vibrations in the doors and get rid of some of the crazy road noise that comes through the doors. I dont want to deaden the floor or basically anything else, i just want the rattles to go away and get a cleaner sound out of my sutff. Please let me know your thoughts and give me your input on how to do this and what materials to use, i am new to sound deadening and what to learn how to do a good job and do it right, so that i dont have to go back and do it again in the future! Thank You for Looking!