Ipod Interference (Whining)

[mwrbunny]

I'm getting a faint whine through my Ipod that varies with engine speed......didn't find much discussion when I searched threads, except for a suggestion that it was probably from the alternator.

I can't handle being in the truck with my stereo and wife whining at the same time, and attempts to fix the wife have failed.

Any suggestions for the Ipod? (I don't hear the interference on AM or FM..)