July Update:
While trying to re-program the eBay AV unit, the app crashed and it looks to have bricked the AV unit.
When I start the car, I get the logo splash screen for a looooong time, then a very basic screen for HVAC controls. No radio, no volume, no nav
I now know the boot up is done in hardware and then goes to the hard drive to finish the boot up process.
I have ordered another AV unit and will try not to kill this one
