Does anyone know how I can do this? It appears to be possible from looking at the IRIS 9000 on ThinkGeek. I'm guessing it's over the serial connection. I have the serial working from an Arduino and can send all the standard play/pause/skip/volume commands. I've tried various combinations of holding down Play or Select to try and simulate the hold down on a headphone remote. Nothing works though.
Has anyone seen any other examples? Any help at all would be much appreciated, thanks!