fitted electric windows to my cab. many years ago ,took me ages when the door panel was removed didn,t expect to see the over engineered mechanism that greeted me compared to the 'ELECTRIC LIFE' after market kit that was to be fitted that still up to today doesn't work correctly, i.e. window labours on the way up, if you close the window with the door open the glass goes up at an angle, have checked the earths every thing seems to be ok, only light on this subject since reading this thread could be that i,ve no relay fitted instead, a direct power supply from the batterywith an inline fuse fitted...was going to remove the windows an refit the manual ones if i can find all those bolts but i may try the relay route first...oh by the way my switches are in the centre consol where the additional clocks should go may have to move those as well.......wyn