Light-off control *important*

Hello! I bought a “light-out control” before, so a part that beeps when the ignition is off and the light is still on, it honestly finds it vnervy, that something like that was not in the Golf 2 series, especially since it is only a tiny part, which in the production certainly only costs a few cents! Behind it is now a guide, it says that the one (of the two cables) cable (red) should be attached to the securing socket of a headlamp, and the blue one to the self I’m sure there are 2 dozen fuses, which is for the standlight and which for the ignition! Need urgent help, wanted to install it today, during the week I always have so little time! @Leinad, you know so well with the GOlf 2, maybe you can tell me the how much security that is! Nice weekend Calvin