I'm adding damplifier pro to my hatch and second skin spectrum over that, and more spectrum on the outside to whatever areas i can get to, probably just the wheel wells and under where the exhaust is. Then adding a layer of luxury liner pro on top of all of that and some dense foam into all the nooks and crannies that i can get to. and then a layer of foam just right under the top layer of carpet in the hatch.. I'm working on it should be done in about 2-3 weeks when i have time.. i'll post back on how my perception in sound noise is. I hope it makes a good improvement, the little rocks in a can noise back there is driving me crazy.
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