j'ai trouvé cette information officielle, en particulier sur le côté payant de la mise à jour pour ceux qui veulent Android Auto sur leur Navi 900:
document DACT4166
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Problem Description
Customer might complain that on a RF900 io6 (Navi 900) or RF700 io5 the phone projection Android Auto is not working.
Cause
Both, Android Auto & Apple CarPlay, were exclusively implemented in BYOM2 ioA/ioB as of MY16.
NGI2.5 RF700 & RF900 (Navi 900) supports only Apple CarPlay, not Android Auto. The Android Auto feature will follow later in calendar year 2016.
Resolution
Do NOT replace or update any part related to this complaint.
Software including Android Auto feature is in preparation for the NGI2.5 RF700 & RF900. It will be implemented in production and it will be applicable as well for MY16 vehicles delivered without Android Auto.
Notice: The customer will be charged for the software installation, as this is not a failure but an additional feature.
Release date is NOT known.
An appropriate communication will follow once details are available.
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