Stick down sound proofing ,Insulation?

BTW I used Noico 80 mil full butyl in my current 70 challenger and was pleased at the sound deadening quality, plus it stuck extremely well to vertical surfaces in the doors. Dynamat is good too, but much too expensive(for me anyway) for the product you get vs results.
https://www.amazon.com/dp/B012B5EMGO/?tag=joeychgo-20