Strange sound coming from speakers when volume turned down...

[TexasRTR78]

Has anyone else noticed this strange clicking or ticking kind of sound coming from the speakers when the volume in turned almost all the way down???? I am not sure exactly when I started hearing this noise...I don't know if it was there when we bought it..don't remember..but, I know it was there BEFORE I had my iPod integrated into the system...not sure what it is but it getting kinda annoying bacause it seems to be getting louder over time. Anyhow, the H3 is due for its first oil change soon and my rear washer pump is not working AND my driver side mirror is kinda shaky at 70mph (which is driving me CRAZY!!) so this will just be something else they can fix hopefully...that is, if they don't try to blame it on my iPod (which I will argue with them about 'till the cows come home if need be).