An on-vehicle electronics device comprises a data determination portion which determines music data matching with a keyword and generates a reproduction list to be used on performing keyword reproduction, where the data determination portion detects the music data matching with the keyword set up by a user from the music data stored in a data storage portion or the music data stored on the optical disk based on analytical data and generates the reproduction list of the music data matching therewith so as to reproduce the music data based on the reproduction list.