What Does This Button Do?

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We get into a lot of new cars here at Cars.com. For the most part, they all feature the same controls — volume knobs, hood releases and temperature settings are usually universal. But sometimes we get in a car and wonder, “What the heck does this do?”

That would be the case with the button above, found in the 2011 Volkswagen Jetta 2.5 SEL that we currently have at the office. Have any ideas? In-car karaoke? Bluetooth?
Actually, it’s the control button for the Jetta’s navigation system, which is standard on the SEL. You press the button, and a computerized voice will ask you to input instructions for your route. Why it looks like a microphone from Rock Band we don’t know.

2011|Volkswagen|Jetta