I paired samsung note 5. When I am listening to the radio and receive a phone call, it interrupts and I hear phone from car speakers. That's what I want. No problem there. However when I use the googlemap navigation, I have to click bluetooth for the direction voice from the navigation and can't simultaneously listen to the radio. When I had iPhone, when navigation and radio, the navigation sound came on the radio mode. I was able to listen to radio and hear navigation if there were change in direction. How can I fix this?