Looks to me that you made an account just to prove to everyone that you're a f*cking dumb*ss.I had to make an account to just respond to this ignorance. No where in your first post did you say anything similar to what Buck said.
Read what your first reply.
Then you say
Honestly do you ready what you post before replying to other comments saying "that's what I said"?
But like Buck said try to adjust your latch and get the decklid to be tight as possible. You can also try lining it with high density foam stripping that is made for anti vibration. If you don't care about resell value get some spray foam. lol
Vibration can also be coming from the license plate and sound like it's the decklid.