A method of providing a signal output on the basis of a master file and at least a side file, as well as vehicle

For the purpose of providing additional functionality in an infotainment system of a motor vehicle, a method for providing a signal output is described in which a main file is transmitted, which makes reference to the Side Files and each called an identifier to the sub-files. This identifier can be calculated (such as in the vehicle) (S16) and compare it with the information contained in the main file identifier (S18) when receiving the master file. In this way, the secondary file does not need to be re-downloaded every time, but can be kept in a cache. By the identifier indicates if the held ready by-file is the most current version of the same.