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Door soundproofing help!

Nick Nick

Ibiza Veteran, Leon Virgin
Nov 13, 2005
69
4
Southampton
Good grief Leon doors do rattle!, I've upgraded my door speakers, however with the now much better bass, all four doors have flabby vibration rattles when the bass kicks. I've skinned the outer panel of each door with bitumen (Roadkill) sheets, however the flab still remains. I've started to skin the exposed parts of metal that are not the outer panel (basically anywhere that won't interfere with the window winders) and also under the screw holes for the door card, but was wondering if anyone who's done theirs had any specific locations that made the biggest difference?

On the plus side, my doors now sound like an Audi when you close them. :happy:

Update: Now much quieter - the window motor mechanism was vibrating against the door card (at least in the rear doors). A strip of stiff foam about 3/4 inch thick between the door card and the motor mechanism seems to have removed most of the noise. You can get to it through two holes in the plastic below where the tweeter would be without taking the door card off once the cloth panel is removed.
 
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