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You'll need some CLD tiles on the rear deck, trunk lid, and heat shield under the trunk. For the rear deck pad, placed a sheet of some closed cell foam to prevent it from rattling against the rear deck metal.
Remember, vibration absorbers only absorb vibrations that produce sound in a certain frequency range.
I use some extrude butyl rope to keep the license plate quiet.
Talk to Don at sounddeadenershowdown.com for these parts. Don't even waste your time with peel N stick stuff like dynamat.
The above approach eliminated rear vibrations in my Cruze using two 18" pro audio subs.
Remember, vibration absorbers only absorb vibrations that produce sound in a certain frequency range.
I use some extrude butyl rope to keep the license plate quiet.
Talk to Don at sounddeadenershowdown.com for these parts. Don't even waste your time with peel N stick stuff like dynamat.
The above approach eliminated rear vibrations in my Cruze using two 18" pro audio subs.