I just bought a 2009 CRV EX L a week ago and I love it except for one thing and I'm hoping someone here can help. I am unable to get anything but the Navigation system or CD's to work. No radio at all. The navigation screen only shows the navigation system, no icons, nothing. The buttons for audio, am/fm, etc do nothing. I've tried changing the fuse and disconnecting the battery. When I put the navigation code in, I still cannot access the radio. Any suggestions???