Toyota Tundra Quick Reference Manual page 380

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Operating portable audio devices connected to the audio system
The volume can be adjusted using the vehicle's audio controls. All other
adjustments must be made on the portable audio device itself.
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When using a portable audio device connected to the power outlet
Noise may occur during playback. Use the power source of the portable
audio device.
I n f o r ma t i o n P r o v i d e d b y :
3-2. Using the audio system
3
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