It doesn't make a difference at all, the HU is the only function that changes. I just did an upgrade for a Sonata SE that maintained all the factory things.
Awesome! I'm sure you knew this question was coming... car to share how, and what parts, you used to accomplish this? I am very much in favor of keeping the mic, usb & aux.
I see you're in Texas, a bit too far for me drive to. So, I would be extremely grateful with any details you could provide.
I did a foolish thing 3 years ago and leased this car, then, last Friday, I purchased it. I know, know... I kicked myself in the ass. I'll be handing over the keys this time next year to my teenage daughter. This is why I want to get the screen larger, and have CarPlay. I will feel much better knowing she can be as hands free as possible with the steering wheel controls, and have access to decent navi with Apple Maps.