A method introduces applications into a head unit of a vehicle. The method transfers a first identifier by a software component of the head unit via a first communication channel to a server; receives a main application in response to the transferring; transfers a vehicle identification number of the vehicle by the main application via a second communication channel to the server; receives metadata associated with the vehicle identification number, wherein the metadata include one or more identifiers; transfers at least one identifier of the received metadata from the main application to the software component; transfers the identifier by an invariable software component via the first communication channel to the server; receives an application associated with the identifier by the software component; saves the application; and forwards a storage location of the application from the software component to the main application.