A quick one for you sparkies... There are a ton of FM transmitters you can use to pipe your iPod or other device over your FM stereo. There is one thing in common to the three units I have tried that is very annoying. I have noticed that there is very poor sound quality for the higher frequency content. All three units I have tried have had such poor sound quality that I can't play a fair amount of the music in my collection. Admittedly, these units are the cheaper models that you can get anywhere, in the $10-20 price range. I can definitely point the problem to the transmitter because I don't have the issue with a direct hard line from the player to the same stereo. My question is, is (are) there a specification/parameter(s) that I should keep an eye out for that would help me avoid waisting money on other units that will repeat this problem? Thanks!