I found an Apple Airport Express 802.11n (version 2; supposed to have a better onboard dac) on craigslist for $40. So i bought it thinking it would be nice to be able to have my passengers airplay their music when they ride with me. So i setup the aex with an extension cord in my trunk to test it out; i set it to run as am access point with wpa. I jumped in and connected to it from an iphone, turned on started playing a track and was easily able to select the aex as the output target, and after a half second pause it started to play the track through the car's system. I was expecting to have a greater loss of quality! There were only two drawbacks to this, first if you're connecting to the aex from an iphone the phone expects the network to provide a data connection and doesn't use the mobile data connection, and second there is a sort delay when switching tracks, however i didn't notice any delay at all when changing volume from the phone. I also noticed that the device got pretty warm for just having it plugged in doing nothing for an hour and maybe 20-30 minutes of listening to music.