I have a 2011 non navi and mine controls from either location. My 09 did as well.
I just realized this myself. After you posted the original question, I went out to see how mine functioned. I agree that the intuitive method would be to press the >> once for track advance.I figured it out and I feel dumb, i thought the arrows were to skip, but if you hold it down it skims through your song to a certain point, it would make sense that if you push on that button it would skip to the next track but actually to skip a song, you would need to turn the knob on the right. =\ **slap in the forehead for not reading carefully.**