Mercedes-Benz W204 Radio Not Responding Fix!

This is on the pre-facelift W204 and might not be the fix for you but it sure worked for me it takes just a few seconds to try and see if it will work for you. if there is still nothing disconnecting the cars battery for a few minutes might help last resort is removing the radio from the dashboard and checking the fuse in the back of the unit. Goodluck folks.
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