I have a quick question. Are the rear seat USB ports in the current MS connected to the infotainment system, or just for power? I can't plug my dash cam into the USB ports in the front as it thinks I am connecting it to a computer and goes into transfer mode so I have to plug it into a USB charger plugged into the 12v socket instead. Do the rear USB ports act the same as the front ports and try and connect to the infotainment system? I don't have my car with me at the moment, so can't check.