Also I’ll take some pictures later when I have time
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So I took the plunge and bought a unit. i got this one from Aliexpress
Smarter Shopping, Better Living! Aliexpress.com
www.aliexpress.com
The installation has not been easy. There were no instructions and some of the connectors didn't match up to the original wiring. It was easy removing the old HU and installing this one. But my attempts to get support were not good initially. so the first time I installed it, the knobs an buttons didn't work. So neither did my HVAC. A few days later after watching a few youtube videos and writeups here and on another site, I realized one connector was not plugged in the right port. I fixed that and now the buttons and knobs work, but still no HVAC. I'm pretty confident that I have to make that disconnection behind the glovebox as I've seen mentioned a few other times.
One youtube video that was pretty useful was this one:
Finally today I heard back from the suppliers tech support. Even though it was not Kirinav on Aliexpress I bought my unit from, clearly it's the same company. After a third email (the first was in all Chinese, the 2nd was part English, but without enough detail for me), they finally sent installation instructions in English which I'll upload on here. THe email domain from the support people were all Kirinav. Soooo...
Anyway I'm not in an enclosed space and protected from the cold right now So I won't be able to get to this until later, but I think I have enough info to make everything run right. Oh one other thing is I don't see where the factory connections are for the rear camera. I have a factory one, but I don't know where the factory connectors are and therefore which one from the Tesla radio connect to it. Any ideas?
These are the connectors with no home (blue encircled are factory, red is Tesla):