The Ottocast only converts wired AA to wireless. It does not add AA functionality to cars without it. Edit : just looked it up and didn't realize you had Carplay functionality. I see the Ottocast uses this to add Android Auto. I've had that same issue on my 2015 Mazda 3.
Google Assistant's driving mode is less distracting to the driver than Android Auto, since you can control everything using your voice. It's also designed with a minimalist user interface that features basic apps that won't distract the driver. However, Android Auto offers more apps and options than the Google Assistant driving mode.
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