i half-inched one out of the scrappy!! as the bearing in mine had gone causing it to make a nice whirring sound
they are located below the glove box, you need to take of the plastic tray then you'll see it on the left.
to remove it, there is a clip at the back of it, u a screwdriver to undo the clip, then rotate it anticlockwise and it should come out
if yours just stops & starts then its probably just a loose connection
