were should i put the dynomat over the woofers or in the trunk lid ?MoJoJoJo said:simple, your trunk is light and with the subs you are pushing its making your trunk rattle, and if your sys. is off and it still rattles, then your trunk lid is lose. put dynomat on it for the subs you got, and check your lock on your trunk but with the extra weight of the dynomat that should solve the problem aswell, if it is lose then you only rattle if you go over a high bump, but other than that, the extra weight you've added should keep it down.