Same for a Sony XAV-AX5550D after market audio unit supporting CarPlay. When connected by USB, charging works, but CarPlay doesn't come up as before. Using iOS 18.2 public beta and an iPhone 15 Pro Max.

+1 I see this and similar issues for all Mfi GPS devices we support. For one device (Dual XGPS), I see EAAccessory connection making succeeding, but there is no data streamed afterwards.