Hi all! I have a 2019 M3, just updated to software 2021.24.11, which until today has not given me any issues beyond a few flat tires. However, as I was leaving work today I heard an annoying clicking sound from my backseat, and realized my sound system seemed to only be operating from the front speakers. After some tinkering, I realized that it seems as though my rear speakers and subwoofer are just gone, and the music will only play from the front speakers. Furthermore, any sound the car makes (blinker, parking sensors, etc.) now produce the clicking sound, and the microphone seems to not be working either, since everyone I’ve spoken to on the phone says I keep dropping out. I have tried the “soft reboot”, as well as powering down, and neither have seemed to offer an improvement. I’m very frustrated, and to make matters worse, there are no service appointments for two + weeks out here. Could it possibly be the software update? Any other advice?