Hi guys, just wondering if anybody knows what this is? If I set the air to blow out at setting 1 the noise starts, and gets louder and worse as I move the dial up the numbers. It's really annoying as know I can't put my heater on in the mornings going to work as the noise annoys me so much. It sounds like it's coming from the glove box? It's like a fan is rotating really fast and vibrating and hitting something? :?