Sound Deadener
I used Lizard Skin on the floor pan . DUI Lite underlayment on the roof and DUI peel & stick on the firewall and behind the back seat . there is no need to do the trunk because no one is in there . The only thing I would do different is to spray Lizard Skin up into the inside firewall higher . Great stuff . BTW the stuff you get at the home center is cheap but doesn't work . It's not sound deadener AND it may be asphalt based . You'll never get the smell out .