Hey.. I may be doing something dumb here, but just bought a vario top case from someone, have coded the lock and fitted to the bike. I can hear the central locking on the case, but box wont open without me turning the key in the lock that allows you to remove the box from the bike. Assuming this is not the right behaviour? Not sure what the point of central locking would be if i still need the key lol. Any vario owners able to confirm?