An automatic WRX requires a different Accessport part# in comparison to a manual Accessport. Thus, your chances just got lower. Waaaay lower.
Well, for the 02 wrx, you don't need a auto ap, either will work. I think it may even be that way for the 03's as well. Once you get into the 04 and 05 wrx's, then you need either a auto or manual ap. Russ
Whoops! Sorry for my ignorance. Your chances just went back up from waaaay lower to just plain low. Good luck on the purchase!