I don't actually have a head unit per se, I'm running a Pure i-20 home audio dock optical into my BitTen as my only source. I love the dock but came across a write up a few days ago about Apple's AirPlay that I peaked my interest and wondered if anyone has done it before with good results.
Take an airport express, modify it to accept 5v to have it run off USB, or 12v to directly wire it in.
Run a 3.5 to Toslink optical cable from the APE audio jack to my BitTen.
Configure my iPhone to connect to the WiFi network for AirPlay purposes but still look to cellular for data.
Seems to be a great idea in theory, bit perfect wireless audio all the way to the processor's DAC with wireless N range! The only worry I have is boot up time of the APE but that isn't too big of a deal.
Anyone got any experience with this type of setup?
