Article ID : 00263123 / Last Modified : 01/20/2026

The Android Open Accessory (AOA) function does not work when the car audio is connected to an Android smartphone.

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The Android Open Accessory (AOA) feature is not supported on smartphones with Android 8.0 or later.
NOTE: For details on how to check the Android OS version, contact the smartphone manufacturer.

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I cannot get the buttons to work on the car stereo.
How to set up the Car FM Stereo Transmitter with a portable device and a car stereo.

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The Android Open Accessory (AOA) function does not work when the car audio is connected to an Android smartphone.

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