Update on the Metra glitch, after force flashing the Metra boxes, I installed them last night and they worked fine then. On the way to work the DIC screen glitches again, and the Speedo and Tach glitches, then recovered for the rest of the drive.
The carpc played fine the whole time, so I will replace the Metra buttons and LCD parts tonight. I have a version 1.1 firmware heater controls buttons from an older Metra kit where only the green color of the RGB screen led works.
If you see it, get it, for tomorrow it may be gone!