I have installed my empeg into my new car along with the tuner and sirius radio (you can see it in this post) I am also using the pac steering wheel control witch works great. I set up the "mode" button on my steering wheel to emulate the "source" button on the rio remote and my question is, is there a way to make the "source" button switch between the player, aux input (sirius) and then the tuner? Right now it just toggles between the player and the aux input but for the tuner I have to hit the tuner button on the remote.