Ive just purchased a leather interior with heated front seats. I've got the climate module and I'm about to order a loom but I've just noticed that my front seats have 4 switches on them on a plastic pivoting disk (that's my best description). The seats have the usual manual adjustment for up, down,forwards,backwards and rake. Are these switches for electric lumbar if so what do the other switches do? I'm hoping they're for electric bolstar adjustment. Can anyone help me?