Hi all, New owners here. We just bought ourselves a lovely Z4 Coupe (2007) and had a great fun driving it home. No issues with it apart from the Aux input is not being detected on the stereo. I’ve read it could be a connector issue or a coding issue. How do I go about working out which one it is and how easy is it to get fixed? Is this something I can fix myself without too much faff or is this something I need to pay someone to fix? Any help much appreciated!