kenwoods are the only fully integraded ones, music keg, operate amp through radio, voice activated nav, touch screen nav, souround sound (gonna be real fun), customizable inteface(very hot), and when you actually see how this thing folds out its like wow. it doesn't flip up like the one i have, it flips backwards. it cost me 1500 plus 780 for the nav, but im gonna buy the keg, mic, and sattelitte radio( for howard stern)