All credit to member @bruesjoh04 who first notified us here:
www.carnivalforums.com
I just wanted to spread the word so that others can find this info more easily. Simply download and install the April 2022 software update for your Carnival. Remember to disable split screen in the phone projection settings so that AA can take over the full screen. Enjoy!

Android Auto on Kia SX Prestige Blurry, No Wireless...
Well this its offical. SX and SXP will NOT get wireless Android Auto or Apple Car Play :( YouTube Kia Wireless AA and ACP Answered
I just wanted to spread the word so that others can find this info more easily. Simply download and install the April 2022 software update for your Carnival. Remember to disable split screen in the phone projection settings so that AA can take over the full screen. Enjoy!