Yesterday on the way home during a snow storm my blower fan started making some noise. I was concerned that maybe there was a mouse nest in there because they like to build them next to the heater. I figured it was just some ice or something that got in there somehow but I decided to take it apart anyway just to check. I also wanted to know if my model had a cabin air filter or not. In the repair manual it says to take the glove box out and then remove the blower unit but you don't have to.