Hulek

@Giannis20 @Felix2021 I have been looking for this thread a long, long time. Happy I found it, kudos to you @Giannis20 In the meantime I did a research which I think may bring some more worthy details. Currently I drive a company car Skoda Superb IV 2024 (code NZ) which is a base model missing, among few things, a rear USB-C section. I dig a lot in wiring diagrams of other modern cars of VAG group and here is what I found: It seems VAG completely dropped USB-hub solution, it happened depending on the car model in years 2019-2022, so any wiring diagrams dated before are with this regard (usb wiring) obsolete now. Currently, in all modern VAG cars (model years 2023+) there are two USB (namely USB-C) solutions, that have been gradually implemented in all VAG car models in recent years. I present them in accordance to PR codes: (1) U9E: External, USB type C data socket(s) and charging socket(s) with increased charging performance In this solution there are two double usb-c sockets capable 45W delivery (fast charging): front - double usb-c VAG part 5NA 035 700 rear - double usb-c VAG part 2G6 035 718 and a front mirror socket (I guess up to 15W) VAG 3V0 035 954 or alternatively 1J0 937 510 This solution is offered in higher segment cars or sometimes as an option (higher trim), for instance T-Cross, Octavia, Superb but please note that VAG uses strong market segmentation. This means endless matrix of countries, car brands, model years and trim levels. (2) U9C: External, USB type C data socket(s) and charging socket(s) In this solution there are two double standard usb-c sockets offering slow charging. front - double usb-c VAG part 5NA 035 736 rear - double usb-c VAG part 2G6 035 954 This solution is offered is lower segment cars (e.g. VW Polo MY 2024). Upon my research no front mirror is offered in this segment. (3) U9B: External, USB type C, only data socket(s) or U9G External, USB type C data socket(s) with increased charging performance There is also a mixed solution (see my comment above about market segmentation) which usually, I would say mostly offers only one double, slow-charging usb-c socket in front VAG part 5NA 035 736. This is for instance a case for Octavia Superb IV (2024) Essence or only one front double usb-c fast 45W charging socket. There is only one front usb-c VAG part 5NA 035 736. No rear or front mirror sockets. Further, there is no harness either to a mirror or to rear part of the car (if you hope to find harness ready to plug-and-play, don't bother, Volkswagen saves every penny). IMPORTANT - WIRING DIFFERENCES Please check this carefully own you own, but I found that the main difference between solution 1 (fast charging) and 2(standard, slow) is: Solution 1 - PR code U9E, parts 5NA 035 700 (front) + 5NA 035 718 (rear) 4-pin socket 8K0 973 754 Pin 1 - KL30a - +12V battery (positive) Pin 2 - VS5V - 5V line Pin 3 - KL58 - instrument lighting Pin 4 - GND - ground Solution 2 PR Code U9C parts 5NA 035 736 + 5NA 035 954 Pin 1 - KL30a - +12V battery (positive) Pin 2 - GND - ground Pin 3 - KL58 - instrument lighting Pin 4 - empty or VS5V (check specific mode wiring diagram). Note: slow charging solution probably can work without 5V line (pin 4). Note: based upon wiring diagrams (see attached for Skoda Superb iV) both solutions use same size positive wires (pin 1) 0,75, but fast charging solution has more ground connections vs to slow charging. Tip: (any car) if you tired to swap 1:1 slow charging front double usb-c slow charging socket 5NA 035 736 to fast charging 5NA 035 700 note that you probably have to re-pin the connection socket - and swap pin 2 and 4 (fast charging solution has GND on pin 4 while slow charging on pin 2). All for now. I hope it helps. Disclaimer: any modifications of the original wiring is at your own responsibility. Any information above is only for research purposes and please never treat it as a guide or instruction. You have always to double check or better use professional car workshop. Skoda Superb IV (NZ) - USB charging sockets solution.pdf