Does anybody know how the heated mirrors are wired? Mine dont work so i checked the circuit through them and they are open circuit. so it looks like i need new ones. When i checked the supply to the mirrors i found that i have a live feed as soon as the ignition is switched on, i thought they came on with the rear screen heater!!! Do i have a fault with a relay? if so where is it and could it be that a thermostat is overriding the rear screen switch.( it is cold today) Thanks in anticipation Martyn.