Abstract: Modular systems for interconnecting different electric and/or electronic modules in a vehicle are described. The system includes a mother board that in turn includes a power connector and a data connector for connecting the mother board to a data bus of a vehicle, and two or more vehicle service connectors of the same type, for connecting different vehicle service modules to the mother board. The system also includes a processor that operates as the system controller to identify whether a vehicle service module connected to the mother board is authorized or not to be connected with the mother board, and to register the identity of the authorized vehicle services modules. The authorized vehicle services modules connected to the vehicle service connectors, once they have been registered into the system, they can communicate between them directly and independently from the processor.