+NAUX on E91

[Mr.Potato]

Hi, i was retrofitting CIC for my friend last night, everything went well, except from adding AUX to the VO list. 

His car is a "05" E91. 

I´ve tried to add it with the original build date (#1205) and the retrofit one (#0909). 

I have tried this with 2 different computers, made a fresh new install on the second computer. 
Then i updated SP-Daten to v71, made a NCS Profile with manipulation, still not working. 

Error i get is: "Following feature is not available for FA: +NAUX"  

I also tried to add the change directly into FA.TRC, but none success there either. 

Does anyone have some knowledge to this?