Have a 2015 RT Limited. For no reason, the Zumo 590 quit playing audio through the speakers. It keeps giving me a message “Audio requires a headset or a powered mount with a speaker”. I have never used a headset . Left it with the Dealer and it worked for them. Thought maybe it had to do with my phone/Bluetooth connection. Have unpaired/deleted the Bluetooth on the phone and on Zumo several times in hope it would take care of the issue . It worked once then I started getting the message again. No helpful information in the Zumo manual. Before I call Garmin, has anyone else experience this?