Frustrated to find out what is causing the radio to stop working. I have a 2011 Civic 1.8 i-VTEC and when I start up the display shows 'Radio' 1 but as soon as any control is touched it displays '1 AF ON' and none of the switches or dials work. The fuses are checked and seem fine, then all of a sudden it will be working again and now it doesn't work at all.