If you had waited for the '07, you would've gotten the center access MP3 player plug standard...ILoveAlliO said:
However, the good news is that POSSIBLY, Subaru might have a way to add this to your '06. If not, i guess you could upgrade your stereo to the one on the '07 and be sure to get the MP3 port as well. Look into it when the '07's are in dealerships.