No Sound....
so it looks like the battery on my 09 GL450 ran out. Jumped started it and now there is no sound at all (no radio, navigation, or phone). The radio now says "Device Unavailable"; i tried to reboot it but holding down the power button for 20secs but no smoke. Interestingly, the MB concerige/road side assistance button works i.e you can hear them. Anyone had an issue like this before?
thanks.
. Should be under warranty - ie NC ($)



