Yes, the reverse camera works perfectly fine, which makes me think that the screen is working.
I had the same theory that something is not plugged in properly or not plugged in at all, but I’ve plugged in all the cables that I can.
My Nav system is seperate from the screen and the stereo is seperate from the climate control too. The climate control works and the screen seems to be working, so must be something from the actual stereo itself. Although its partially working since I can hear sound and change channels/source.
None of the cables are marked so I don’t know which ones are for display or what any of the cables are for.
Happy to send a photo of the cables and the AV unit.