We have a 2017 Impreza Limited without nav. Android Auto works fine from a Google Pixel, except the navigation instructions are quite loud. I haven't found any adjustments on the phone to quiet it down. I tried setting the instructions to "softer" it Google Maps, but couldn't detect any change, and the phone volume buttons don't affect how it sounds through Android Auto. I haven't found any of adjusting the volume on the car, either, with the volume control knob doing nothing. I asked Subaru customer service, but they were clueless. Does anybody out there know some way of quieting down navigation? We don't want to mute it, we simply want it not so loud.