Need help trying to stop vibration on my driver's side rear door handle. When the sound is crankin' i get a little vibration from the outside handle and the fuel door. If I push in on it slightly, the vibration stops. Will D.mat or other internal sound deadening material help with this?

Yep

Matt

dynamat around the speakers first and then dynamat the rest of the door if that doesn't work, and if that doesn't work fill your door and panel with "great stuff" i'm about to do my panels and hatch with it

i used b qiet extreme its not the best in the world but it works and is less exspensive than most other soond dampening material.

i'd say brown bread. nice n cheap and about 80%-90% as good as d-mat for like 65% of the price

I used FatMat. It's all the same stuff more or less... all the non-dynamat brands are similarly priced.

i use dynamat extreme, its all the same though, I just paid for a name