Interesting development. Seems to have fixed my radio. Mostly likely diagnosis of problem is that an internal cable works loose. My '10 JSW radio went dead on me about a week ago. Battery also soon went dead. Recharged the battery. Suspected a short in the radio, so pulled the fuse to save the battery while researching the radio. Pulled the radio; it's easy. Takes about 10 minutes without prior knowledge of the location of the clips holding the dash bezel. There is a youtube that shows its removal. Use a plastic pry tool. After the bezel is off, there are 4 screws to remove and the radio slides out. The radio then unplugs. VW really charges $100+ for this 5 minute job? Anyway, the radio comes apart easily. Take the top off (one screw, then gently pry off). Take out the CD drive (4 screws, 2 each side. Turn radio over and CD unit will fall out. Catch it so as not to damage the CD interconnecting cable which mates with the main pc board). I went further and removed the whole radio pc board to inspect for a fried component; you don't need to do this. To get the pc board out, I had to disconnect all the internal connecting cables. Never found anything in the inspection, so put it all back together, making sure the cable connectors were firmly seated. A couple are zero insertion force (ZIF) type, so be gentle with the connector's clamp mechanisms. Put it all back together. Plugged back in car, plugged in radio fuse, and IT'S ALIVE. Maybe I'm lucky. There are some reports of these things coming and going, but that's indicative of loose connections. Try reseating all the interface cables in their connectors before shelling out money.