1. A device for use in a vehicle, comprising: a plurality of connectors that connect the device to vehicle components, wherein the vehicle components are operated pursuant to a feature set of electronically operable functions; a memory that stores codes for defining the feature set of electronically operable functions; a module that adapts the device to connect to a control unit that is disposed inside a vehicle through a serial communications interface, wherein the control unit is part of a security system installed in the vehicle, and the security system is provided with new functionality based on the codes stored in the memory, and wherein the module further comprises codes for adapting the device to connect to different control units inside different vehicles.