I'm still in the process of stripping the quattro, but I'm starting to think about the rebuild and what insulation I need to use on the doors, floor and roof. The factory under-carpet foam is in decent condition but it has been wet for a while and is a bit smelly, so I'm thinking of replacing it. I'm after some advice on what to use. I'm thinking I'll Dynamat the doors as that made a big difference in my Skoda, but is Dynamat the best thing for the floors and roof as well? Dynamat and something else between it and the carpet? Any advice is appreciated.