The setup is very easy.. You need the latest firmware update on the BS5
Set your BS5 to "audiomaster" yes
Set up an " Apple airport express" to your wireless network, and that is VERY easy! Just follow the instructions that comes with the airport..
Buy an "UCA-222 U-CONTROL - BEHRINGER" (aprox 40 us dollars)
Connect airport xpress with a 3,5 mm "jack to phono" cable. Jack end in airport xpress.
Connect phono end to "UCA-222 U- CONTROL - BEHRINGER"
Connect UCA-222 U- CONTROL - BEHRINGER to USB port on Beomaster5
Wait 2 minutes and thats it... :-)
Choose A AUX as mode on the BS5 display. (You can just as easely program the BEO 4 to show A AUX in the display, see the manual)
Now turn on iphone/ipad/macbook.. press play on ipod/itunes.. Look for the airplay symbol that appears.. Press the symbol and the music will sound in your B&O speakers..
Cheers