Controls and features USING YOUR AUDIO SYSTEM AM/FM Stereo (with 2 speakers) VOL PUSH ON SEEK TUNE 1 2 3 4 AM/FM AM/FM Stereo (with 4 speakers and fade capability) VOL PUSH ON SEEK TUNE AM / FM STEREO 1 2 3 4 AM/FM 32 TONE CLK TONE VOL ST DX FM 12 TONE CLK TONE VOL ST DX FM 12