There is no installation instructions, though i made it myseft finally.
Works fast and smooth, good stereos.
It's for my 2010 Scirocco, i installed some apps and work well, i installed Turque, it's a useful app, i like this radio... Thumb up
nobody tested steering wheel control on this unit. I bought one and get this feature work. In other way its beautiful designed and fit perfect as original radio.
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