Those are some of the questions I had. The radio connector has five wires inaddition to ground and power so it should be possible. I wonder if it will have any effect on the audio signal. If I do decide to try this out I'll be sure to let everyone know how it went. That will then give me a reason to try and add the backlights to the buttons that I have sitting around.

-Finally received my Mark2 no thanks to customs.