With the MyFord Touch system fairly well integrated into the functions of the car (Gen 1 Sync Systems were easier to keep the menu functions separate from the radio), I don't think you'd be able to put in an aftermarket head unit without major modifications to the BCM (basically going the route of purpose-modified racers and developing your own code to replace functions lost by MFT). The Sony head unit is relatively robust, and you should be able to easily integrate an amp & speaker set into it.