I bought a used Pioneer changer a couple years back. Bought the PIO adapter and everything worked fine. But I have a ticking noise when the music is playing. It does not go up with the volume but can be heard between tracks and low volumes in 1/2 second intervals.
The sound is also heard when the car is shut off and on the 1st accessory spot on the ignition. Which leads me to believe that the problem is with the unit and not some power related noise associated with a car component.
Has anyone had and fixed this problem with their CDX-M30?