Stereo has no audio, just static.

Yeah been fine since so who knows.

I have had a couple of similar occurrences in the 7 years I have had my RRS. As I understand it, if the battery starts getting a bit low the car goes into a power saving mode that generally the driver is not aware of. The obvious thing is though, the radio - the first stage the volume is restricted and a message comes up on the radio screen something like "Low Power Mode" after driving for a while it goes away and full volume is available - I guess the battery is charged back up and the car goes out of low power mode. I have had this Low Power Mode a few times with my old battery but not in the past 12 months with a newbattery.

Twice I had something resembling what you had - radio seems to be on - but no volume or display. Driving around does not seem to fix it initially but some time later the radio is back all ok - I understand this is a lower level of power saving mode. Again I have not had this with my new battery.

I have looked in the handbook for this "Low Power Mode" on the radio and not found anything. I gleaned the above information from discussion on the UK D3 site a couple of years back so cannot confirm how valid it is.

Garry