Sound apparatus for vehicle

A sound apparatus for a vehicle, which comprises:

• a control panel provided with operation switches that can operate a display device and a sound playback unit on one surface facing a passenger room;
• a sound playback unit which is disposed as one component on the other surface of said control panel and plays back sound information pre-stored in a storage medium;
• and
• a control unit which is disposed as one component on the other surface of said control panel, has a radio tuner as another sound playback unit, and controls playback operations of said radio tuner and said sound playback unit in accordance with an operation signal input from the operation switch, wherein
• said sound playback unit makes self diagnosis of predetermined items therein, and outputs the diagnosis result to said control unit via a communication line, and
• said control unit makes self diagnosis of predetermined items including operation of said radio tuner therein, and stores at least failure information of the diagnosis result thereof and the diagnosis result input from said sound playback unit in a nonvolatile memory provided thereto.