Amber.....I am not sure if we are talking about the same thing, but when I checked out a Kia Venue recently, which should be similar, I had to use a cable to get things on my phone to show on the screen.
I can't remember if I got it to work through bluetooth, but I don't think it did as far as making the car screen link with it. As in my current car which doesn't have Android Auto, the audio will go through the speakers.....no cable needed.
I did think it was cool to get google maps up on the screen in the Venue which to me negates any need for getting navigation options.