So this morning, I tried to raise the volume and nothing. Tried the steering wheel and regular controls..nothing. I can change stations and do everything else but nothing volume related. I tried the mute and unbutton that doesn't work as well. The sound is on but very low. Restarted car, still doesn't work. Anyone know any quick fixes? I was told there is a way to reboot it?. P.s I have the 5 inch unconnect