I have a 2013 ES350, and yesterday the speakers stopped working. The radio still displays as if it is working, but there no sound from the speakers. When I hit the SOS button, sound does come from a speaker, advising me that I am not subscribed to the service. Also, I'm not able to adjust the balance in the equalizer (i.e., left, right, front, back). I checked the fuses and they appear to be fine, and the sound system is getting power. Any suggestions? Thanks!