I installed this head unit in my 2007 Audi A4 and it generally works fine. It doesn't come with installation instructions, so take your time to complete the installation. I also had to file the top edge to keep the traction control buttons and four-position indicator from getting stuck. Another complaint I have is the terrible Bluetooth sound quality. In general, this is a worthy replacement for the standard head unit, but it's better to leave what is or find something else.
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