Iphone 13mini updated to ios18. Carplay is wired on my 2021 RAM Laramie. After the update => Premium audio is lost, I can only hear low quality audio. When I manually change to Bluetooth instead of usb on the car, then audio comes in speaker mode on my phone and not on the truck.
Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. I'd greatly appreciate it if you could open a bug report, and post the FB number here once you do. Bug Reporting: How and Why? has tips on creating your bug report.
Same issue for me, thank you for reporting this.