[STi from DSM]

This was super simple:
Press and hold the two outer buttons at the same time until the light starts flashing green rapidly. Then grab your garage remote and press and hold the button you want to program and the garage button at the same time until the green light starts flashing rapidly. If you have a rolling code opener, get out of the car and press that button, then go into the car and press the button that you chose to program, then press it again and hold for three seconds, and press it again for 3 seconds and your garage door should go down and be programmed.