If you really don't want to upgrade much, i'd suggest at least adding an amp and aftermarket speakers. Simply adding speakers to a stock head unit won't impress you much in the long run, so while everything is off the car, mind as well amp the doors. B) And when you decide to throw in a sub and complete a nice setup, at least you'll be one step ahead and ready to upgrade.
'14 Escape 2.0t
2012 5dr Ti : Traded
2012 5dr Ti : Traded