Die KI befragt, und folgendes erhalten, inkl. Quellenangaben. Damit sollte die Frage geklärt sein:
Apple restricts certain CarPlay features, such as HUD integration, to its own apps. Specifically, the HUD functionality is currently only supported by Apple Maps, as Apple limits access to the "Instrument Cluster Video Stream 2" feature used for HUD display to its own navigation app (BimmerTech) (Apple Developer Forums) .
However, there are plans to make this functionality available to third-party developers in the future, as indicated in recent updates to the CarPlay developer documentation (Apple Developer Forums) . This would allow third-party navigation apps to also integrate with vehicle HUDs, similar to Apple Maps.
For now, though, if you want navigation instructions on your HUD while using CarPlay, you will need to stick with Apple Maps.