I have a Russound CAA4 unit installed and I would like to know if anyone knows how to change the display on the keypad for "Source 1" or "Source 2" to something else. For example "source2" had a mac Mini running iTunes on it and I would like it to display iTunes and source2 to display what is attached there. I can't seem to find any documentation regarding this. I can live with it but it would be nice to be able to change it. The key pads are the KPL units.