Guys, I was finally able to do a proper test since the OTA update late last year.
Mine used to not work unless I plugged it in before starting the truck, if not, very iffy. I suspected the cable (even thought the one I had in there was bought new just for the truck).
Bought another MFI certified cable, and worked out of the gate with the engine on, right after I tested the “old” cable which did not work. I am thinking if you plug and unplug often, the connector weakens and some strands get brittle and make a poor connection (old cable used to work fine when I first got it, and I don’t use CarPlay daily).
Something to consider. Of course, the ideal solution is wireless CarPlay. Hopefully this will be a feature in future generations.
Cheers,