Hi,
Thanks your respond. I checked and tried everything in the link your provided, and nothing is helping.
I connect my phone to CarPlay through a original Apple USB cable. I still have my old iPhone which I haven't update it to iOS 15 (it is still in iOS14 latest version), and it works perfectly.
I can connect and activate my new phone which is 13 Pro Max to the CarPlay, and can use the Apple Map and GPS navigation without any problem. However, every time I tried to play a music, it will get black screen immediately, after a few seconds the CarPlay will rebot/reconnect and back to home screen. I've never successfully paly a song in the CarPlay with the new iPhone 13.
I only have one car that has Apple CarPlay feature, so I can't check it with other cars.
I am guessing maybe there are some audio playback bugs or compatible issue on the iOS 15 CarPlay right now. Hope Apple can investigate it.