This is a comprehensive lecture and laboratory class which builds on the two previous electrical/ electronic courses. Emphasis is placed on the theory, operation, component identification and repair of audio and entertainment systems, power accessories such as power windows and locks, keyless entry, anti-theft systems and cruise control systems. Additional topics included in this course are the theory, operation and repair of various supplemental restraint systems. The laboratory component of the course includes various activities that follow the guidelines of the National Technicians Education Foundation (NATEF). A library/internet research written project concerning some aspect of an automobile’s electrical system covered in this course will be assigned and is an integral component of this course.