Auxiliary Audio Input Jack

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

When a device is first connected to the 3.5 mm (1/8 in.) input jack the infotainment system automatically switches to that device. If an auxiliary device has already been connected, press the AUX or CD/AUX button to select the device.
If the system detects the device, but the audio is not heard or is not clear, attempt to connect the device using a different cable; cables can deteriorate over time or become damaged.
Playback of an audio device that is connected to the 3.5 mm jack can only be controlled using the controls on the device.
The volume control on the device may need to be adjusted to ensure sufficient playback volume through the infotainment system.