I say go ahead and upgrade to the 9.0 version. I offer a 10% discount to previous customers. The full screen option is for the OEM interface...on the 7.1 version, you could select full screen so that the virtual buttons for the side button packs don't show.
Haha. I figured that! I didn't like the full screen for the OEM anyway.
So I'm clear on the 9.0 version, as it relates to climate control and heated seats .... If I'm in CarPlay mode and I want to change 'what is heated' on the seats and / or specifically change aspects of the climate control settings, I need to leave CarPlay and dive into the OEM screen through the steps previously described. I would like to confirm that if want to simply 'turn on heated seats' or use 'Auto' on the climate control, for example, that I am able to do that by pressing the Hard Buttons on the dash.
Hopefully thats clear. If anyone can post a video, that would be appreciated. Thank you.