Perused all the comments and I'm with Catesta. As far as putting albums on the iPhone space is not unlimited so I place very few albums on the iPhone. An option is just to use the iPod but that means fiddling with that while you're driving. Not a great idea. With a 6 cd changer you can load them before driving so no messing around needed.
All that being said, I realize some of us are swimming against the tide.