Door panel damping techniques?

[MGarcia]

I have PPI's 6.5 set (not the aluminium one)installed on the doors of a Jetta A3. The door panels have not been moodified, dampened, sealed, etc.
The problem now is that there is a lot of rattling going on in the doors (and it is not from damaged speakers).
Could someone post what is the professional recommended way of damping for noise and forming an enclosure on this door panels to get better midbass. The visible side has to remain stock, and the interior mechanisms should stay functional.
I dont mind copying someone else's ideas, it just has to sound good, it is not for a contest.

[audionutz]

Well, you could use a damping sheet (Stinger Roadkill, Dynamat, Noise Killer, Cascade Audio VB-1 or 2, etc.) and apply it to the door sheet metal around the speaker's location, both the outer door skin and the inner door surface. Then, you could use a pair of foam XTC speaker baffles that fit around the backside of the 6 1/2's to give them a little "enclosure", per say, and you should notice a vast improvement.

[MGarcia]

OK, so damping the door skin, inner parts and inside of the panel should be done without great difficulty.

Two opinions for baffling (if you can say that):
1.- I am not sure i understand how these foam baffles work, and if they can be purchased for specific vehicles, etc. Any info is more than welcome.
2.- I heard of people using fiberglass on their panels, or icicle sticks and resin, or any other stiffening option. Is this worth it?

Any comments, please, i am not in a hurry (yet).

[audionutz]

The XTC baffles are available through Crutchfield, as far as your local dealer, you'd have to ask. Icecicle sticks??? That would work, I guess but I'm not sure what you mean. Anyway, the foam baffles simply install behind the speakers (the speakers fit into them); you just cut i small hole for the speaker wire to go through and the leading edge of the baffle's "cup" doubles as a "gasket" around the mounting surface of the speaker. It's that simple...

[JUANSR]

WHAT EXACTLY DO THE BAFFLES DO