Hi. Thanks for reading this. I enjoy fiddling around with speakers, and I'm excited about the newest incarnation of Airplay/Airport technology from Apple. I know that I can buy a new or used Airport Express to fairly easily get music from my Mac or iOS device to a set of speakers. However, what I am wondering - as someone with little-to-no understanding of "protocols" and (what I call) "wifi antennas" - is whether I can more cheaply buy or build that one little "antenna"-1/8 female jack. To put it another way, is there another, cheaper way, besides buying an Airport Express, Airport Extreme, Apple TV or Airplay-enabled speaker to capture an Airport stream? Here's why I ask. I have access to a group of small, but impressive speakers. They are essentially powered bookshelf speakers. I would like to open them up, and stick - what I call - an Airplay antenna in there and close it back up. I'd prefer to do it more cheaply, and in a smaller size, than buying an Airport Express. Is that possible? Hope my question makes sense. Thanks for anyone's thoughts.