i have a problem. i would like to apply sound deadener to my vehicle, because it rattles like no other. the only problem is, i dont have a conventional truck that i can just stick it all around, i have a hatchback/fastback camaro. in other words, there is a window in the place where i could apply deadener. i cant see any useful places to put it because the main component that IS shaking is the windowed area. any tips on where i can apply the deadener?