I found a work around for my wired CarPlay 2018 Nissan Murano and the iPhone 11 Pro Max. To get CarPlay working, it required the USC female to USB male adapter many have mentioned in this thread. It also required the Apple Smart Battery case. It seems this problem exists when the phone isn’t fully charged, CarPlay will fail to launch every time. With the battery case on, the phone is always at 100%. CarPlay is now working 100% of the time, no audio skipping, failed launches, or stuttering. I’m also using an Anker MFI certified USB-C to Lightning cable.
This obviously is an incredibly expensive work around, but I thought I’d share for those who rely on CarPlay to be functional.
My question now is, is the problem related to the iPhone hardware, iOS 13, or both? If it’s just the hardware, can Apple ever fix this with a software update?