I downloaded the instructions for the AAI-GM9. It looks similar to what I did. It requires you keep the cd-changer so you'd have to mount it somewhere else. This adaptor comes with a switch to go from the headunit to the cd-changer to the auxillary player (the empeg). Hint: You can automate this switching by using the power from the empeg that runs to an optional tuner. If you set the screen blanker to power off when the screen is blanked then the power line to the tuner will go off also when screen is blanked. With a relay and the instructions you can hook up the adaptor to switch to auxillary when you unpause (turn on) the empeg etc.