When my Samsung S9 phone is plugged into my 2017 Ford Escape, I can use the road map software (e.g. Google map and WAZE) but I get no sound. The words "silent notification" appears on the phone and cannot be deleted while plugged into the car. The same problem is there for our other S9 phone. Map sw works on phone when unplugged from car. The sw works fine when used in my Chevy truck so it would appear to be a problem between SYNC3 and Android Auto.