Dynamat Options

[Medtner3]

Dynamat: What thickness should you use? should you put over the tar on the floor should you throw away the rubber pad behind the backpad on the firewall?





I need some adivce: I want to add sound barrier under my backpad and possibly floor. I currently have the black tar floor, nothing in doors and rubber pad behind backpad which honestly has seen better days and looks pretty nasty.

Should I add any sound proofing to the floor before I carpet? If so, what thickness?

Also, should I throw out the old cracked and dirty rubber pad and put sound proofing on top of the firewall behind the backpad or leave it as is?



Thanks in advance for advice