Gtech, thanks for responding. I am unfamiliar with the mirroring approach, so I don't know how it compares to the Android Auto. The NAV is certainly better on the A.A., because you can say just about anything to the phone (like, "take me to the nearest Chinese restaurant") and it work fine. But the 2018 Acura NAV I find excellent, and I am using the Acuralink concierge service, and it's probably cheaper ($25/month) than an unlimited data plan. My biggest concern about the A.A. is how to play locally-stored music, like on an iPod. A.A. seems to only stream music from I don't know where.