The 9004 is setup so that if a low beam, or a high beam bulb blows, that you swap the bulb over from its counterpart in the same headlight assembly. Pretty nifty idea really. But no, the quad lights dont come on, thats a thing that has to be done in the relays, and my wife doesnt want it, and since its her car, she gets what she wants.... As long as she quits wrecking my cars!!!