The radio and nav system on an 09 DB9 keeps cutting out. Doesn't matter if the engine is running or not. It sounds like there's a short of some kind in the dash. Just before the radio and nav cuts out I can hear a snap noise, like the sound of static discharge. Has anyone else experienced this? And how can I fix it?

 

You need to take it to someone who knows the vehicle. Any aftermarket items added, history of repairs, battery state. Is it a coupe or volante? Just saying a short in the dash is a brilliant diagnosis.