Dear KMA156, I read your note about the Prius 2010 radio fix. My 2010 Prius Nav system changes the radio channel when I press MAP button. Now it is also doing so when I press the AUDIO button. I am approaching 50,000 miles so warranty is out of the question. You indicated that you know how to fix this problem? Can you give me some information on how this is done short of replacing the whole system?
