I have just purchased a 2004 pluriel sensodrive .Whilst driving to work this morning it began beeping( three times) each time I stopped for more than a few seconds.I noticed that the button to the right of the radio( like a clock with a wi-fi symbol at the side of it) was lit up so pressed it in and the beeping has now stopped.Any idea what this button does .Also there is a bitton to the left of radio ( wi-fi symbol with off underneath it) any idea what this does.Came without an owners manual