Hello, I have a control question because I want to make sure I have such a diagram

On the front is painted a speedometer with four bulbs. Three of them are connected to each other (blue wire) and this is what I mean, I understand that from the ignition switch (position 54) a plus runs to them, and then the minus goes to the rest of the installation?

On the front is painted a speedometer with four bulbs. Three of them are connected to each other (blue wire) and this is what I mean, I understand that from the ignition switch (position 54) a plus runs to them, and then the minus goes to the rest of the installation?