How do you Operate Kenwood KDC-135 stereo?

To operate the Kenwood KDC-135 stereo, first ensure the unit is powered on by pressing the power button. Use the volume knob to adjust the sound level and press it to mute or unmute. To select a source, press the "SRC" button to cycle through options like radio, CD, or auxiliary input. To tune the radio, use the seek buttons to find stations or the manual tuning knob for precise frequency adjustments.