
▲ 5 r/CarPlay
Calendar functionality with iOS 13. Shows up when the event begins in ~5 hours
u/contclasout — 5 hours ago

I’ve been struggling with wireless CarPlay audio lag for ages. Music would cut out for like half a second twice every song. Had it on my 15 Pro Max and it continued on the iPhone 17 Pro Max. BMW G31 and F40.
The fix that actually worked:
Disable Background App Refresh. Go to Settings -> General -> Background App Refresh and turn it OFF.
Some app in the background is definitely messing with the WiFi bandwidth for CarPlay. Since I killed that setting, the audio has been perfect.
Hope this saves you the headache I had!
I have not tried it.