Radio and air conditioner center panel

I have a 2005 RX8 and I have lost all power to radio and a/c control panel. The dash has all lights , windows work, seat warmer and cig lighter works. Just the radio and control panel for heat and a/c. You can turn on the blower for fan for a/c and it works just can not switch from a/c to heat, defrost, etc. We have checked all fuses and none are blown. Any suggestions on this issue??Lisa