i have recently brought the car and as the revs build i can hear a whine it is coming from the belt area (so not gearbox) it gets louder with the engine and revs i have had the fan belt done and has not made any difference can anyone help me and give ideas of what it could be please ???also when lights was on if i pushed on electric window button it dimmed the lights also heaters dimmed them too don't no if this helps