| 摘要 |
PROBLEM TO BE SOLVED: To provide an audio unit in which source changeover is carried out so that an antenna does not expand or contract improperly in the source changeover. SOLUTION: A source changeover sequence corresponding to a plurality of sources is stored in advance, and the source which a user is selecting now is recognized. When, for example, the user is selecting CD as a source now, the source is changed over in the order of MD, CD changer, and radio, as shown in (a) whenever the user changes over the source. When the user is selecting MD now, the source changes in the order shown in (b), and when CD changer is being selected, the source shifts in the order shown in (c). In addition, when the user is selecting radio now, changeover is made in the order of CD, MD, and CD changer, as shown in (a).
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