Mercedes Benz 2012 SLk350

Hi: I need some help with radio! Suddenly I have no volume! I don't know where is the fuse box or what fuse # Im looking at ,for the radio ! Also I don't know where the Amplifier is located! Need some help! Where should I start?

Hi: I need some help with radio! Suddenly I have no volume! I don't know
where is the fuse box or what fuse # Im looking at ,for the radio ! Also I don't know where the Amplifier is located!
Need some help! Where should I start?

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