Harman Karden Harley Davidson radio

Question

I have a 2007 HD electra glide classic with a Harman Kardon stereo, factory installed. I was caught in a downpour and since the radio will not play. When I turn on the ignition the radio comes on, but I am unable to shut it off or get any of the buttons on the radio to do anything. This bike is also equipped with controls at the handlebars to control the radio and these do not work either. I have checked the fuses and they are ok. Help, I'm stumped