InFusion must write a numeric variable for each A/V zone with a number that corresponds to the device active in the A/V zone:
0=Zona audio spenta: nessun device attivo 1=CD 2=Radio 3=DVD 4=Sky 5=BlueRay 6=TV 7=iPod
If you define you custom device that is not in the standard A/V library please use a device number starting from 1000.