Hey Guys,

Just got some of the sound deadening material from McMaster-Carr (supposedly like the Dynamat stuff) to quiet the rattles in front doors from speakers (1990 300E). I have read the guidance here about using this material on the doors. My question is: Do I stick this material on the back of the door panel or do I stick it onto the metal door (over the plastic sheet?)?

Any advice would be most appreciated.

It depends on how much of the material you have..Usually it is applied to the door metal itself to reduce the resonance of that metal..If you have enough do both...I am not sure you should apply it on the plastic either..It is usually applied directly to the metal..Hope this helps...

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83 300CDTurbo 307,000
2005 Honda Element 266,000
56 Nash Ambassador Country Club Special 34,000(under restoration presently)

http://www.peachparts.com/shopforum/car-audio-multimedia/125099-123-install-extreme-dynamat.html

When I did this to my diesel truck...I applied it fully to the insdie of the outer door skin..........and to the metal of the inner door structure..........made a HUGE difference..........you can actually hear the stereo now and not be screaming to be heard over the noise.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

Thx Guys.

(I got a huge amount of sound deadening material from McMaster-Carr - this being my first foray into the world of things audio, I appear to have "overbought" - so I may well try to do both metal and panel). I appreciate the guidance.

If it were me, I would cover as much metal as you can with it. the more the better.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon

Putting it on the door cover panel is wasting it.......pull up carpet and use that extra on the transmission tunnel adn firewall area.........

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

Glad I am slow.

Will cover metal, then use excess on trans tunnel, footewlls.

Thx again to all.