Yesterday, I tried the bluetooth metadata function with the google music app. And it is working in combination with my car. Only Poweramp sends "Unknown" to my Car. Perhaps there is a problem with the parsing? Frustrating that the developer is ignoring this... I dont want to use the google app, beauce i can't make the app to continous playin when i connected to my car via bluetooth. Poweramp is able to, but cannot share the Metadata