You think for everything there is an adapter. why hasn’t anyone invented a carplay adapter yet? Wireless carplay builds up a Bluetooth and Wi-Fi connection at the same time. That no one has yet managed to build such an adapter that is plugged into the USB port and then builds a WLAN/Bluetooth connection with the iPhone and forwards the signal to the infotainment. BMW doesn’t do that any other way. I would also pay 100+ for this. Only you can’t buy it. Or do you know more?