Hello,
I took delivery of a 2019 RAM Laramie 4WD Crew 5.7 bed on 12/12/2018, and one hour after delivery it was in service because I couldn't connect to Apple CarPlay.
Multiple people helped me, and they tried all sorts of things to get it working, but in the end they couldn't get it working nor could they get other iPhones or Android working. Multiple cables were used.