In May I requested a combo upgrade for my 2017 Model S, AP3 and infotainment. I was told I would have to wait for infotainment parts, so I got my AP3 upgrade done by itself in July. Right after that I requested the infotainment upgrade and was told 6-10 weeks for parts, and we'll let you know when they're in.
Of course, I never heard anything back, so last week I once again put in a request through the app for the infotainment upgrade. I got the same auto-response via text message. I responded to that, pointing out I had gotten the same response over two months ago and never heard back. Shortly after that, I got a communication in the mailbox of my app, saying they had parts and I should schedule service. So I did. Supposedly they are coming to do this on Wednesday via Mobile Service.
From what I'm hearing here, it's possible that they still don't have parts for my specific situation and perhaps the Tesla person who scheduled me doesn't understand that. We shall see, probably Wednesday.