So I'm attempting to do this for an 08, I realize this thread has been beat to crap by dumb people who don't read and hope I don't come across as that. I want to buy the ECM, from an 05-09 legacy and then I have to get an extra key for each key I want, because none of my current ones will work, right? So two keys will put me back $200+? Is there an easier way to do this?