What are the reasons why the Audi A6L cannot connect to CarPlay?

[McKarter]

Audi A6L cannot connect to CarPlay either because the car system is incompatible or due to version issues. The solutions for Audi A6L not connecting to CarPlay are as follows: Check for damage at the connection point: First, check if the phone data cable has any damage or breakage, and whether there are any foreign objects attached to the metal contact terminals of the USB plug and phone plug or if the surface is oxidized. Inspect the car's host unit: Check if there is any damage inside the USB female port of the car host's external USB-HUB, and whether the contact metal piece can maintain good contact with the USB male plug. Check for looseness: Inspect whether there is any looseness in the connection between the car host and the external USB-HUB. To avoid poor internal contact due to prolonged oxidation, you can repeatedly plug and unplug the two connectors of the wiring.