I used to use the X10 MP3 ANYWHERE system to transmit the analog out of my sound card to my stereo via 2.4 ghz. It worked OK, but sound quality wasn't anything spectacular. Luckily, my stereo is now close enough that i can run a direct RCA cable from the digital out of my sblive! to the coaxial digital in of my receiver, therefore getting me MUCH better sound quality (pretty much no loss). unfortunately, i doubt you're that lucky to have your stereo that close, so YES, those wireless systems DO work, you just have to figure out if you think the sound quality is OK.