So I basically started off buying a Pioneer avic-2700 first, only to upgrade to the AppRadio 4 (SPH - DA210) head unit, then I realized that did NOT offer a cd/DVD player now a connection for XM(love XM). Anyways after a week of this I got the NEX6100, the HDMI adapter, lighting to HDMI cable, etc. everything on CarPlay was fine, and then I got the new IOS update and now I'm not getting the entire carplay screen on the HU. The HU displays it in CarPlay mode as the screen isn't fitting the screen size of the HU. Like the soft buttons are not visible, and I only get like one icon in the CarPlay screen. Anybody else having these issues?

It does the same that it did with my SPA-DA210..... Here is a photo of what it looks like and obviously the same on my new 6100NEX (MUCH better than the AppRadio4SPA-DA210)

I've had that happen, when I do I just force close all apps, hard reboot the phone and plug it back in. (Hold power and home buttons down until the phone reboots, do not slide to power off)