I have a 2017 Outlander SEL and have experienced this issue twice now. While driving, sound for AM/FM will go out. Display has power and volume is up. As I scroll through modes, everything seems to work, and I even get sound from Sirius XM (not subscribed but preview). This model does NOT have navigation so standard audio unit for the 2017. Powering on/off radio does not change anything. Then after parking and shutting down, radio will operate normally on restarting. So, really not a fuse issue or speaker ground issue as some others have determined can knock out all speakers, as sound works in other modes. While SUV is still under warranty, I note that the radio is not (3 years for entertainment system). Any suggestions or other folks have this issue?