Evening all,

I have a RNS-510 retro-fitted in to a VW Passat, no issues for years and years. I was driving my daughter to school about a week ago the audio just cut off, no sound from the radio or from navigating around the unit, I drove straight to the garage after dropping off my daughter as it was going in for some bodywork. I picked the car up a few days later and the audio was working fine.

Today it's gone off again, I've read a few forums and I've updated the firmware to 5218 (Access denied) as that one one of the suggestions. No change.

Any suggestions on what to check and try next? I can get access to VCD's if needed.

Many thanks.

Nick.