See also:

Station preset
Preset buttons ...

Wear indicators
1) New tread 2) Worn tread 3) Tread wear indicator Each tire incorporates a tread wear indicator, which becomes visible when the depth of the tread grooves decreases to 0.063 in (1.6 mm). A tir ...

When CD is in the player (type A)
When the button is pressed, the player will start playback. ...