I'm using VIVA on an iPhone 8+ with iOS 11.2.6. I use Waze to navigate. Often when Waze speaks (turn left, etc.) then I lose the music that is playing through VIVA (Amazon Music Unlimited account). It seems like I can fix the problem by asking Alexa to play the song again until she complains that "Another app is using your sound; please connect to the Roav Viva app to get your sound back" and I click the notification window that appears at the top. This seems to work until I navigate to another destination. (I have to change navigation destinations constantly because I'm driving Uber/Lyft.)
Is there a better work-around for this? Does DROID have this same kind of issue?
Thanks for your consideration and thanks for an awesome product!