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# audioSource

The audio source to select.

```
var audioSource: INCarAudioSource { get }
```

## Discussion

When the user asks for a specific audio source, Siri fills this property with the requested source. If the user asked for the next or previous audio source, Siri sets this property to [`INCarAudioSource.sourceUnknown`](/documentation/Intents/INCarAudioSource/sourceUnknown).

---

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