The Aux input for a 2005 Buick Terraza is going to be on the right side of the radio. There will be a little rubber cover over it if it hasn't been used before. You'll need to plug a device with a 3.5mm jack in to it. Using this input You're going to be able to stream music from Your device and then through Your vehicle's stereo. Once You have a device connected to it You're going to need to press the AUxButton that is located on the stereo in order for You to hear the Audio.
Margaret
February 5, 2021
Why is the power outlet under the cup holder above the floor in my 2006 Buick terraza? This is a bad design especially when you can't reach to plug in phone etc.
Michael E
July 16, 2020
The 2005 buick terraza aux input is on the right side of the dash.
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