Thanks for your advice.  I've done all that, but he continues to stress.  Crating, blankets over the crate, walking at rest stops, water.  He refuses all of it.  Like I said before, he's spent long hours in the car since I got him at 5 months old.  It's nothing new.  I listen to audio books, so I can't imagine that would be stressing him, it's not heavy metal cranking through the speakers.  
