Important: AM/FM stereo with cassette and in-dash CD player shown, knobs for AM/FM stereo with cassette player and AM/FM stereo with in-dash CD player are similar.
Remove the desired knob (4 or 5) from the radio by pulling on the knob.
Install the desired knob (1, 2, or 3) to radio by placing the knob over its post and pushing the knob onto the radio.