2012 should be T5.2 though. Important difference in terms of connection. Yes, take a picture of the Quadlock connector.
In case others read this prior to ordering: I had no problem ordering a kit including Canbus adapter for my T6 (aka T5.3) and it would also be possible for T5.2, but they need pictures of the Quadlock and the dashboard. My kit works well but I had to select VW PQ as protocol (Multivan and Caravelle should work but don't).
