Ok. I got the rear deck done, down to the back seat foot landing with 3 1/3 of the 4 sheets I had. It is actually a bit quieter in the cab. How do I know? I was talking with my mom and told her I was driving. We continued to chat for a bit then she said I must be parked, and I wasn't. So, you can "do it right" with just the rear deck, but if you want even more dampening, then do the wheel well humps, front doors, front floor, heck the whole car.
Of course having a PV1 muffler doesn't help the noise much, but again there is a different with what I have done. Most likely I will get more sometime to do the rest of the VX... ya know... to "do it right".