So of course my 2019 has wired USB Carplay and I wanted wireless. I tried several wireless dongles and they either had lag or periodically failed to connect. I moved the poor performers to my wife's 2024 Hyundai Palisade, my daughter's 2013 jeep with aftermarket Stinger radio, and my friend's 2012?Toyota 4 Runner with some unknown aftermarket radio and they ALL WORKED PERFECTLY. So it was poor performance of the GM hw/sw. I finally found one that works pretty good. It has connected every time (although a bit slower than the others, may 5-10 seconds), minimum lag, and no other problems I have found.
