Device for controlling audio data output (300; 400; 500) of an information management system (350; 450; 550) in a vehicle, comprising - a first data input interface (360; 460) and at least one second data input interface (301, 361; 401, 461; 501) for receiving input data streams from at least two different information sources (320-322; 420-424; 520-526, 528, 529); - at least two audio output channels (302, 303; 402, 403; 502, 503) for outputting data; - a decision means (304; 404) for automatically determining for each input data stream to which of the at least two audio output channels (302, 303; 402, 403; 502, 503) the corresponding input data is directed, depending on at least one predetermined criterion; - a weighting means (305; 405) for weighting the amplitudes of audio signals, corresponding to the input data streams from each of the information sources (320-322; 420-424; 520-526, 528, 529) determined by the decision means to be directed to the same audio output channel (302, 303; 402, 403; 502, 503), according to at least one predetermined criterion; and - an audio data mixing means (306; 406) for mixing the weighted input data streams which are directed to the same audio output channel (302, 303; 402, 403; 502, 503); characterized by - at least one microphone (322; 422; 529) wherein the at least one microphone (322; 422; 529) is placed to receive acoustic signals from outside the vehicle and adapted to provide at least one input data stream to the first data input interface (360; 460); and - filtering means (362; 462), wherein the filtering means (362; 462) is adapted to filter the at least one input data stream supplied by the at least one microphone (322; 422; 529), according to at least one predetermined criterion, prior to providing the at least one input data stream to the decision means (304; 404). - a first data input interface (360; 460) and at least one second data input interface (301, 361; 401, 461; 501) for receiving input data streams from at least two different information sources (320-322; 420-424; 520-526, 528, 529); - at least two audio output channels (302, 303; 402, 403; 502, 503) for outputting data; - a decision means (304; 404) for automatically determining for each input data stream to which of the at least two audio output channels (302, 303; 402, 403; 502, 503) the corresponding input data is directed, depending on at least one predetermined criterion; - a weighting means (305; 405) for weighting the amplitudes of audio signals, corresponding to the input data streams from each of the information sources (320-322; 420-424; 520-526, 528, 529) determined by the decision means to be directed to the same audio output channel (302, 303; 402, 403; 502, 503), according to at least one predetermined criterion; and - an audio data mixing means (306; 406) for mixing the weighted input data streams which are directed to the same audio output channel (302, 303; 402, 403; 502, 503); - at least one microphone (322; 422; 529) wherein the at least one microphone (322; 422; 529) is placed to receive acoustic signals from outside the vehicle and adapted to provide at least one input data stream to the first data input interface (360; 460); and - filtering means (362; 462), wherein the filtering means (362; 462) is adapted to filter the at least one input data stream supplied by the at least one microphone (322; 422; 529), according to at least one predetermined criterion, prior to providing the at least one input data stream to the decision means (304; 404).