so i started putting in this stuff called mastic tape, also known as putty back tape, its a putty adhesive with an aluminum backing. I figured i would try it out to seeing as i get it from work for very little, and dynamat is like 50 bucks for the doors.
only got 2 doors done, each one took about 45 minutes to an hour. so far i can hear a bit of a difference in sound, and my mirror doesnt vibrate nearly as much. i only got 2 doors done and my hands were fried from peeling the tape and all that jazz, plus i had to do some other stuff to the truck.
i think once i get new speakers ill put more on the doors, it was just cold out, and i was tired.
oh and i used a little over half a roll for those 2 doors.