Climate Control Stuck

[pav]

Hi, i have a 03reg 2.3ghia petrol. The problems started a few weeks ago. First the outside temperature in the main dash started to show abnormal temperatures. Then the rear heater would remain on and wouldnt turn off even at the off setting on the climate control panel, and also the speed of the front heaters goes up and down by it self. Now the outside temp is showing nothing in the dash and the climate panel is stuck one speed and though u can knock the speed in climate display down to the off position the actual heater remains on, but u can adjust temperature and direction, and also ac not cruise stopped working also. Help someone r they all connected?