I'm going to be replacing my head unit and the entire Mach 460 sound system next year, but it isn't doable right now because of the green. I went out and bought a cassette adapter so I could use my portable CD player because my radio reception and choices are bad and low. Low and behold I come to find that it doesn't do a dang thing except spit out "error 1" at me. Does anyone know what this means? Can I take apart the radio and fix this myself? I've tried looking up radio code errors but have had no luck yet, please help, thanks.