Everything I wrote about a month ago? Just happened again. I went through the process of resetting all the things and ended up in another weird scenario. I had video but no audio being transmitted to the car. After 30 minutes of trying to resurrect the audio, I gave up and drove home.

This problem happened with the wireless dongle and with a direct USB connection to the phone.

The next day? Audio was working.

All of this stuff worked flawlessly, like for years, and now two failure in a month. Very frustrating.