Just adding this, depending on your state, it may be illegal, and the way to pass an inspection would be to wire it so when tested you could switch it to work correctly at the inspection. So a separate switch to go from stock to the mod'ed lighting might be something you'd be interested in.
I had my fog lights on my Jeep independent, and our laws wouldn't allow it, the fogs had to turn off when the headlights were turned on high, but had to work from the regular HL switch(but I found out that if I covered my fogs they would pass, just the way the law was written).
So check with your state......... I didn't even know they had cars in N.D. .........