Hello, Having an issue with car (Fiesta Zetec-S 1.6 tDCi 2006). Reverse light does not work when put into gear, however when the Air Conditioning button is pressed, it lights up. I've checked all the obvious stuff... fuses, bulbs? Any suggestions on how to fix, where to pick up the parts, I'd rather not pay some garage to fix something straight forward. Any help would be much appreciated. Cheers.