anyone having any issue with noise when the A/C is turned on. i have an 07 with 3100miles...just did it tonight on my ride home. i put defrost on and it did what it was saposed to cleared up the fog on the window then it started making a nasty like glazey look on the outside so i switched it to heat for haha's and it made like a grinding nockin noise not really loud but loud. and when you switched it to cold it didnt make the noise...anyone experiancin wierd things like that...ill take a look at it at work tomorrow but im just the type that gets nervous and just would like to know of anythin. havent seen it happen before and never had a complaint from a customer..thanks