However if all you want is a working device, here's one for $60: http://www.amazon.com/iHome-AirPlay-Rechargeable-Wireless-Sy... And there are much cheaper choices if you stick to bluetooth.
For hacking things together, there is a $30 dongle that takes power and delivers 3.5mm audio: http://www.amazon.com/Sabrent-Receiver-Supports-Portable-WF-...
However if all you want is a working device, here's one for $60: http://www.amazon.com/iHome-AirPlay-Rechargeable-Wireless-Sy... And there are much cheaper choices if you stick to bluetooth.
For hacking things together, there is a $30 dongle that takes power and delivers 3.5mm audio: http://www.amazon.com/Sabrent-Receiver-Supports-Portable-WF-...