Hey guys, did a little deadning in my truck. I used Cascade Audio mat all around and a barrier decoupler on the floor. I must say I was impressed with the results as far as road noise, exhaust drone, and such goes. The noise from the motor through my cowl hood is about the loudest noise in the truck now. I probably need to do a little work under the hood to take care of this. I will be starting on the sub enclosure/amp rack this week. It will hold a Boston G5 10" (and possibly a GTR10 Passive radiator) along with a PPI Pro650. Here are a few pics.
Door Skin:

Inner Door Panel:


Rear Wall:


Overhead:


Floor:



Door Skin:

Inner Door Panel:


Rear Wall:


Overhead:


Floor:



