I have one of those LED lightbars you see on trucks and some cars that are incredible bright. Mine is a small one, 30watt, 7". I want to install this behind the little grille in the center of the bumper, just below the license plate(for those that live in states that require it.) Looking at the metal bumper there are already a few holes that I can use for mounting the light perfectly with a little work. the grille will block a small amount of the light but it should improve visibility quite a bit on these old backroads of Ohio at night.
How would I go about splicing this LED light into the Hi side of the headlights so when I switch to dims, it shuts down?