Can android apps share access to the audio output? I sometimes use Maps Navigation, which will give audible turn by turn instructions. I plug the EVO to my car stero using a patch cord so that I hear the instructions over my radio. However, if I'm using another application that outputs audio, like Pandora or the music player, they go silent as soon as Maps speaks an instruction. What I would like is for the apps to be able to share the audio output with some kind of priority set, so that Pandora would pause momentarily while Maps spoke an instruction and then resume. Is that possible?