I was able to pull out my USB socket without taking apart the entire center console (fortunately) and found out I have the "6C0035726C" socket, which I understand supports AppConnect and Android Auto, but does not support Apple Carplay. It is purple and has the main cable + 2pins on the side.
Now based on the info from viewtopic.php?t=74656, I now need a "6C0035249B" socket that supports Iphones. My headunit is 3Q0035824B, SW version H28.28.133_STD2Plus_EU, 6C 2017.
After searching, I'm not entirely sure of a few things and wanted to clarify:
1. Let's say I get my hands on a "6C0035249B" with the extra 2 pins - is the install straightforward, i.e. unplug the old socket and plug in the new one? Looking at the pictures I found online when comparing those two sockets, It seems that the new one would be physically able to be connected (see screenshot below).
2. In case a whole new cable/harness is needed as well, how difficult is to install it to the headunit? (I'm almost certain that in that case I'll need to take the whole center console off
3. After the install the coding seems straightforward - Module: 5F and proceeding according to this video https://www.youtube.com/watch?v=JH6wFeh8SmQ. Is this procedure different for different headunits?
4. I found supposedly two types of 6C0035249B, one having the extra 2 pins and one without (see links below). Is this just an error in the listing or are there really two types? Can they be differentiated somehow when ordering online?
https://www.ebay.co.uk/itm/225954389834 - no 2 pin
https://www.ebay.co.uk/itm/225954424365 - 2 pin
Thanks!