subscribed. i would like to add a system to my truck someday soon, but i dont wanna pay someone to do everything or trust people after what cartoys did last time i was there. The dynomat part is what im realy interested in. But i use a spray last time i did sound detening(sp). The spray is nice because it can go on thinner, works the same if not better and everything goes back together with ease. if the dynomat works well for you maybe i will use that because the prep work for the spray was a real PITA