The "Transition=23" refers to effect number 23 which is "displays a random transition". You can change "23" to any of the effects below.
RADIO CONTROL COVER
Protect your cassette tape and controls from the rain with this cover, made out of Marine carpet with canvas backing, making it waterproof. Top square of cover is attached with velcro to panel above controls. When it is raining, you can lift it up enough to adjust the volume and change stations. When down, it protects all of the controls from the weather.