I like the idea of Google Play Music, especially the part that lets it upload any new music I add to my computer library. I know I can make the music available on my N7 for offline play. I don't like the Google Play Music player. I tried to adjust the volume, but I guess the only way to do that is to use the volume control on the tablet itself. Even at full volume, it is almost inaudible in the car. Is there another music player app that is compatible with Google Play Music? Most of the others need the manual uploading of music to the tablet, nothing automatic.