Hi @Mikael_Ohlsson,
Was ARC actively downloading any tracks or playing any music when you connected to the head unit?
We have an ARC hotfix for CarPlay-related issues that is currently testing in the Early Access category/branch:
If you’d like to migrate your Roon and ARC instances over to EA, you can follow these instructions:
Take note that migrating back to/from Production to Early Access would require a reinstall, however, and redownloading of your locally saved tracks.
Otherwise, build 440 will ship to the public branch of users to download shortly. Please update once available and let us know if it resolves this problem. Thank you!