Android Auto option 'missing' from C3 2017 Wave 2.1 NAC

[GiveMeABreak]

I'm pleased to hear that and it sort of goes along with what I was saying - These features are available without configuration - or the dealerships would be full of thousands of customers wasting their time asking for the same thing - which makes no sense for standard features. I can't think what the issue is apart from the cable, the Android Auto App on the smartphone, the smartphone or software version itself.

It was only the earlier SMEG units that had to be activated by the dealer for some of these functions on some models and with a later software udpate - but they haven't made those for years, seeing as the RCC and NAC units replaced them.

[wombat]

OK, just to close the loop on this, in case someone in the future have the same problem.

I went the Citroen dealer and they allegedly 'reinstalled' the software on the unit (I suppose the process is more invovled / aggressive than just usual upgrade from USB stick - but what was done here exactly is hard to say).
Afterwards, Android Auto appeared on my NAC - all works great now.

I suspect that my NAC was the very first version of Wave 2.1 (from 2016) and they did not have AA at the release (which would explain why the feature is not mentioned in the paper manual I got with the car at all - while CarPlay / Mirrorlink is). Subsequent upgrade via USB (to a release containing AA) would not enable AA - because, to be honest, traditional carmakers will never give you any new features in the updates, especially for 'free' (and there is a problem of rewrting manuals, support for these, confusing the users with new icons and options, etc).

Likely a more invovled reinstall (done by the dealer) would wipe / revert to factory default 'features flags' or so in the software and activate standard functionalities for the given NAC version, including AA (It also enabled 'Connected Apps' feature for me, but this one seems to be pretty much useles). Or something like this - but I think this theory sounds more less plausble

Thank you @GiveMeABreak for all the input and help here!

[GiveMeABreak]

No worries and thanks for the update.

I suspect they have connected to their servers and if it was a very early Wave 1 or 2 system, may have had to of been activated. All these services are enabled by default now, but I'm glad I'm glad you have it sorted and can start using it to its potential.