Hi. I picked up my new BMW 320i (2014) yesterday and have been trying to connect my iphone 12 to the built in multimedia system. I want to use my phones sat nav and Spotify to play music. The issue is that when I connect my phone via the USB, the phone charges (which is great and shows me it works), then it thinks for a few seconds then says "Not supported". Any idea how to fix this? Also, was wondering how to update to the latest software version in case its that, but it seems it needs a mechanics computer (seems very over complicated!)