I am trying to install the USA Spec PA15-TOY ipod adapter in my 1999 ES300 with the Premium Sound System. I have everything hooked up and ready to go, but the stereo won't recognize the adapter. You are supposed to just hit the "CD" button for it to work, but for some reason it isn't. Has anyone else installed one of these? My car isn't listed on USA Spec's installation sheet, but Crutchfield assures me it should work, and they have never been wrong yet. There are four DIP switches on the side, 1 is to turn on the RCA inputs and has no affect on the working of the rest of the adapter, but 2, 3, 4 switches do. I have tried it with 2 on, 3 on, 4 on, and 2 on, 3 off, 4 on. I can try all the other combinations I guess, but these are the only two configurations for the Lexus cars anyway. Thanks a lot.