They are indeed the same part.
HU5Z-19A387- *
HU5Z-19A387-A (BLUE BACKLIGHTING) Ford (Wide 1 USB-A Port, w/Pass Through)
HU5Z-19A387-B (BLUE BACKLIGHTING) Ford (Wide 1 USB-A Port, w/Pass Through)
HU5Z-19A387-C (BLUE BACKLIGHTING) Ford (Wide 1 USB-A Port, w/Pass Through)
Interchange Part Number:
HU5T-14F014-AA, HU5T-14F014-AB, HU5T-14F014-AC, HU5T-14F014-AD, HU5Z-14F014-BB
2016-2019 Ford Mustang
2016-2019 Ford Focus
2016-2019 Ford Explorer
2016-2017 Ford Transit
Once on 3.0.20204 you should be able to have CP by just plugging the phone in with an Apple cable. Is there an issue you are experiencing with CarPlay?