Switching from android to apple

I have a Mazda six that I’ve been driving for a while actually since 2018. When I bought the vehicle, I had android devices and added android auto. I recently switched over from android to Apple and I am wondering if there is any instructions to remove android auto and switch to CarPlay? If there are any forms already listed with this topic, please point me in the right direction after a few searches, I didn’t see anything specific to switching from one to the other. Thank you.
 
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