I have android auto car stereo touch screen 9" I purchased for my 2010 Titan. Truck has a Rockford Fosgate stereo and does have hands free phone calling from factory which goes through speakers. It doesn't seem to have blue tooth for audio from phone that goes through car speakers but has the 3.5 mm jack. I bought just a standard blue tooth adapter that goes in the jack. My problem is I can't get audio files to go through to my car speaker using Android Auto from things like You Tube music and I can't hear navigation from maps app through speakers. If I don't have the android auto play connected, I can hear music through my car speakers by just using the blue tooth adapter and my phone. Another weird thing, when I choose FM on the android auto, it does allow me to hear and control the FM radio with the touch screen. Do I need a different blue tooth adapter for the stereo so it can communicate between the stereo and the Android Auto. It seems to me that there may be a conflict. When I look at my connections on my phone, it shows Wi-Fi connection through android auto and won't let my phone connect to blue tooth adapter plugged in to 3.5mm jack at the same time. Any suggestions appreciated!