See also:

Turbo models
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When CD is in the player (type C)
When CD is in the player (type C) Each brief press of the “CD/AUX” button changes the modes in the following sequence. When the CD mode is selected, the player will start playback. ...

HD RadioTM Technology (Digital AM and FM Radio) (type D audio)
HD Radio Technology is fueling the digital radio revolution in the United States and around the world. The digital technology enables broadcasters to offer new and unique FM content via HD2 ...