I installed eDead pretty much everywhere but the roof so far.
They make different versions for different parts of the car. Like with the eDead V.2, they make it from use in doors, the floor, and trunk... and than ussually have you put a layer of V.1 over top of it for UV/Heat protection.
If you let the stuff sit on in the sun, or use a heat gun, it will be a little eaiser to work with. I'd also reccomend getting a small roller for the spots the are hard to get down. Also, cleans the hell out of the surface your appling it to or else you may have problems getting it to stick. I used 3M Super 77 spray cleaner to clean all the stuff off.
Other than that just remember its VERY time consuming. It took me a good 4 or 5 days to complete my car, but I did pretty much apply it everywhere. It's worth it though
http://www.edesignaudio.com/ep2/edead.htm