PURPOSE: To obtain the listening-in of the latest traffic information during parking even when separating from an automobile by providing a means to update the reception of the traffic information, a memory, and the content of the memory after performing timer setting to start the reception in case of receiving the traffic information by radio.

CONSTITUTION: A car radio receivable the traffic information by an ARI (Automatic Road Information) system, etc., is constituted to obtain the latest traffic information even during the parking as follows. Namely, the reception start time of the traffic information is set at a timer circuit 1 first at the time of parking. When the traffic information is received after that time, the information is written on the memory 2. The information in the memory 2 is updated at every reception of new information by an update means 3. When a reproduction request signal is issued after coming back to the automobile, the latest traffic information is read out and outputted by a reading means 4 corresponding the above signal.