I have a '09 ford escape XLS with the standard radio (as in, not the fancy nav radio of the more expensive models). I've had the car for three months now and i'd like to upgrade the radio to something a little nicer. Would I need to get ford's own touchscreen nav/radio as an upgrade because of the dedicated phone buttons and whatnot? (my escape is equipped with the Microsoft SYNC, I wouldn't want to mess with that) if not, what do you guys suggest as other options? and lastly, how would I start going on about doing all this? I would appreciate any help.