I have always used sound deadening pads brought from PARTCO. No fancy name and they are not a silly price. Works very well and does the biz.
Believe it or not you will not hear me coming as I am not like that. The car is very quiet from the outside,, basically I want my music on the inside for my pleasure.
Stuart,, just help yourself mate,, do I need to do anything or can you access what you need direct.
The front speakers hit the bin,, the rear speakers are still there but not in use,, rear speakers mean different things to different people but have no place here.
The comments that I have had so far are more than nice especially from audio people who are deemed experts by their respective customers.