CD player on both the old and new radio work fine when the audio decides to play. The antenna is fine, as the radio plays fine when I can get sound to work. I originally believed the amplifier was either shorting or not receiving power, but I now suspect the stereo input is the one at fault. I am going to check the voltage at pin 5 ASAP. I am hoping that will lead to something. Very sorry for the other thread again. It was an honest mistake and will not happen again.