awesome idea,, awesome illustration..
hats off to you bro..
@op,, connect it inside the headlamp assembly,,and use wiring insulation,, to co vver it and its connctions..
do post the results,,and how it performs,,how is quantity/brightness of light affected,,
diode cannot be used in either direction,, it has two terminals(or connection points) .. the side with little white strip is cathode... make sure this side connects with the low beam wire,, and the other side with high beam...