hazard lights/rear defroster/ac all dont work...

ok, so last year I broke the faceplate for the radio, making the controls for the rear defroster and ac not work. I put a new one in today, same all around (manual climate control) and something must fried. I still don't have use of the following- rear defroster/fresh air/ac/hazard lights, and the temp doesn't show on the display. I checked all the fuses, and they all look good. I guess it could be a relay.. im just wondering what could cause all these to go out... any ideas?