With the AppRadio app you can control more from your headunit on the 140. And with Mike's extensions, you can control even more http://avic411.com/index.php?/topic/34188-appradio-extensions-20-beta-full-iphone-control/
Pretty much your headunit can become a display for your iPhone. From what I've found this only works when your phone is wired in though, not over bluetooth.