I don't understand why you guys are so worried about frequencies. It takes about two seconds to change, and I rarely do anyway. My generic transmitter only has two frequencies. <br><br>I can't imagine why you would want/need more than four. Here in Tucson we have a FM radio station that broadcasts at exactly one of the frequencies that my transmitter uses, but I don't even notice a difference in background between that frequency and the other one that isn't used by local radio??<br><br>My only problem is an inherent one, FM radio doesn't quite have CD quality, but I don't think more frequencies are going to help that.<br><br>