alxflibero

Hi all, i'm getting crazy on the issue in the subject.
I bought a Android Auto retrofit made for W166. This component give the possibility to have rear camera, Apple car play and Android auto works on my Audio20 NTG 4.5.
All works fine but i was unable to heard the audio works. The vendor said me that i need an Aux analog input bu this is not available on my car.
So, search on the web and i found many forums where it talks about the possibility to activate the Aux input going to the Engineering menu and connecting a cable near the Audio20.
I did it following instructions but the engineering menu looks like very different from the one i see in the forum even if the version seems the same.
Practically i don't have any option to activate and instead a list of features to choose i have some blocks to push like the picture attached.

Is there someone who can help me ??
Thank you