My A/C has a mind of its own...
 

I have an 03 Santa Fe 2wd V6 2.7.... Both my A/C and its console lights have a mind of their own...it switches from recirc to fresh on its own....sometimes the A/C itself comes on when the knob is in the "off" position...when I turn the knob to the "off" position the thing goes haywire and clicks about 10 or 12 times with the different button lights going on and off...This happens numerous times every time I drive it and the knob lights will come on when I tap on the side of console...also it clicks alot and I can hear it under the glove box.... is there a relay switch bad or is there a short?? Please help thanks!