One of the executive-level leaders in many larger fire departments is the battalion fire chief. Typically, a battalion fire chief has years of experience in the tasks necessary to the smooth running of a fire department.
The SYNC computer, which Ford calls the Accessory Protocol Interface Module (APIM), is housed separately from the head unit, called the Audio Control Module (ACM), and interfaces with all vehicle audio sources as well as the high-speed and medium-speed vehicle CAN-buses.
An application programming interface (API) is (as the name suggests) an interface for your application to use code that does not belong to your application (usually a library). Usually, an API is comprised of a set of function/method calls that can be made to the library by your application. All system calls together constitute an API that the operating system (kernel) provides to applications that run on that platform.