I should've slowed my roll a little. It's back to functional in all but one way following a factory reset, downloading a software update, and installing some APK updates. I'm thrilled to have Android Auto back.
There's one remaining issue I hope someone here may have some knowledge about. The HVAC controls effectively control the HVAC (what a sentence). However, those changes are not reflected in the display. I have downloaded and installed the 4 APK update files. I set the vehicle through T'Eyes' app. The temperature constantly reads at 63.5F although I can confirm variability in temperature and AC when operated. The fan speed constantly reads 0 although it is functionally variable as well. The AC constantly reads "off" although it is functioning correctly.
This isn't the biggest deal. Honestly, I'm just elated that the thing works. If I could get this working though it would be awesome.