I have a 2023 cx9 Touring. I managed to pair an iPhone 14 and can make calls
I can use Apple car play only when connected via a cable but not via blue tooth
Thoughts
I didn’t think the CX-9 ever came with wireless carplay.
If i am correct that means that you can make call and play music wirelessly through bluetooth, but if you want to have carplay show on the screen you need to connect with a wire.