What is the difference between models H776N and H776N-O?
Also, what does the option for higher RAM & ROM gain me? Is it just that the unit can process commands faster?
My vehicle is a 2016 Hyundai SantaFe AWD Ultimate. It has the same manufacturer control panel as in your picture. I have navigation, Bluetooth, backup camera, etc. From your other responses, there is no need for additional wires or dongles, correct? Steering wheel controls and everything else still functions as originally designed?
Lastly, and hopefully this will not be an issue, if for whatever reason, it doesn't function as desired, I can return for full refund but I would pay the return shipping, correct?
Thank you
поCarlos