Car play question
So I have a 2019 Forester and it is car play compatible. The car play works great. My question is I can’t seem to access the second USB port when car play is being used. So if I have my phone plugged into one USB port and a usb drive with music on it in another that source is blocked out. The mi Ute unplug phone I can then use the usb drive to listen to music. Also blocks aux jack from being used at same time as car play. I get different stories from Apple and Subaru each saying it’s the others issue. I know both can work because I have tried it on a friends GMC and it worked. So is this an Apple iOS issue or Subaru needed to do something.