2005 Toyota Camry Owners Manual - Page 150

'05Camry_U (L/O 0409) ST (Stereo reception) display Your radio automatically changes to stereo reception when a stereo broadcast is received. "ST" appears on the display. If the signal becomes weak, the radio reduces the amount of channel separation to prevent the weak signal from creating noise. If the signal becomes extremely weak, the radio switches from stereo to mono reception. TUNE (Tuning) Turn the "TUNE" knob clockwise to step up the frequency. Turn the knob counterclockwise to step down the frequency. 150 2005 CAMRY from Sep. '04 Prod. (OM33684U)