Hi - i'm using the iPod classic 80gb and have recently purchased the original Bose Sound Dock. Great speakers but after a while of having my iPod plugged into it i'm starting to hear a faint buzzing sound from the speakers. the same sound appears when i have it docked charging - after a few minutes the same thing happens. it's really faint but very annoying - really bothers me. i have already exchanged the sound dock for a new one thinking that my original was faulty but the same keeps happening. i thought it could have been my ipod but the same happens with my touch. anyone experiencing the same? anything i can do.