You do need to add a wire into the indicator stalk. I can't remember where it goes, but on the prefacelift lights, the dipped goes out when you select main beam, which on facelift lights (seperate main and dipped) you don't really want!
It doesn't go from the headlamp switch to the indicator stalk, it is just a small piece of wires bridged across 2 pins on the indicator stalk if you get what I mean.
All it does is stops the dipped beam going out when you select main.