Specific rear attachment for MONOKEY or MONOLOCK top case to be combined with the MONOKEY plate KM5, KM7, KM8A, KM8B, KM9A or KM9B or with the MONOLOCK KM5M or KM6M / the combination with KM8A, KM8B, KM9A and KM9B does not allow the assembly of a light kit stop on the suitcase and / or device for the remote-controlled opening of the suitcase / maximum load 6 kg