I have just found out that it seems that when the phone is connected to the wire that automatically activates apple car play, it's overriding all (most) other multimedia input. In particular, you cannot switch back to the SD car based Garmin Map Pilot navigation or use it together with apple car play. Is that your experience? Is there a way to override apple car play so you can switch back and forth with the Garmin navigation, CD, and USB etc.?