From halogen to bi xenon

[Djoletti]

Hello guys, I have bought oem bi xenon headlights. Kufatec adapters, but I’m wonder where to put the 2 pins on the adapters? I know i have to take the wires in the cabin, under steering wheel. But I don’t know where to put wires? How do I know that?
please help :/

 

[Djoletti]

It’s Seat Leon 1p 2009