I am a big metallica fan and listen to them a lot but their bass doesn't sound good at all with my RE12's sealed. I tried to eDead as much as I could and tighten as much as I could but my Lancer still rattles and has little irritating rattles almost like plastic on plastic. The car isn't the best made but is still a good car as far as engine/performance. I try to isolate all of the rattleing and nothing I do helps it. It is especially bad when my windows are up, I just don't get it. Suggestions ANYONE?