Hello,
its was a bit tricky that is for sure. Im working on a video to show how i did it too. You remove the part that has the bulb and cut its wire that has the connector off. Then splice / heat shrink it to the extra wire in the led kit and then connect that wire to the ballast . To secure the bulb in the housing , you need to bend and manipulate the metal clip that holds the bulb. Thats all! The Bulbs are water proof while operating too so there is no issue there.