What sort of stuff did you use and how much did it reduce the sound by? I want to cover most of the interior, looking at not exceeding 15kg as I know the heavy stuff works better. I was mostly after a rattle free interior but want to refine things more now and make for a more relaxing time driving. Still going to keep the asts though 
			
			 
	             
						
					 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		