This is my first post on here so sorry if its crappy, I looked around and didn't see anything kind of relating to this but when I was riding in my car I went to turn on the blower at a higher speed after my windows were fogging up, when I turned the knob the thing didn't make the usual clicking/slide feel, so I popped off the knob to look at it and then I see the little plastic piece wall, I took it apart and now there are a few pieces that fell apart upon removing the under radio piece, I didn't know if anyone else has this problem or if there was an easy fix because I don't know how it goes back together. Any suggestions would be greatly appreciated.