On early (2015-2016) VW, Skoda and Seat/Cupra cars you sometimes find USB ports that support nothing at all, or Android Auto only; on Audis they were fitted with charge-only (CHARGE ONLY) ports. You can tell them apart by their colour and their appearance.
- Not supported
5Q0035726B 
5Q0035726G replaced bySupported
5G0035726E - Not supported
4G0035726 replaced bySupported
8V0035708 - Not supported
8W0035726 replaced bySupported
8W0035708