My sound system so far is going to be a double-DIN DVD player/nav unit. I don't care about the DVD capability, but I like the big touch screen and navigation. Front speakers are Energy 6.5's with crossover 1" tweeters, rears are Energy 6x9 3-ways. Sub system as yet undecided.
Dash unit:
Fronts:
Rears:
I'd get the tilt screen nav unit, but it costs about $1100 more.