how to:
http://www.ehow.com/how_11208_sound-deaden-car.html there are several types of materials and costs involved here. what's right for your budget??
products avail:
http://www.ehow.com/ehow_radlinks_a...7CCar%20Sound%20Deadening%7CRoad%20Noise b quiet is one
http://www.b-quiet.com/ dynamat is the one that i have used along with the double sided aluminum insulation.
http://www.dynamat.com/ note:
the single or double sided aluminum composit material has a 1/4 - 5/16'' jute material type inner and is an insulation mostly type product. yes it does cut noise but these other two type products, dynamat and b quiet stick /adhear to the sheet metal and cut the vibration. using this type material, you do not have to completely cover the metal panel, maybe half, or sections as when you cover the roof. long 6'' strips work every 10-12'' apart.
i put the jute material over the sound deadening stuff (cause it's very expensive).
