There aren't any US marketed turbo kits available for the automatic, but Greddy will work if you tune it. You'll probably need larger primary injectors. Re-Amemiya has one in Japan, but it's big $$$. Any particular reason you want a turbo? There's a couple supercharger kits coming next year that will be tuned for the auto, out of the box.
I only know of one person with the Greddy on an AT, but no dyno numbers. He did shave a couple of seconds off the 0-60. There's a thread further down this section.