Hi guys!

I fugured it out -- I attached the 3-rd controlling wire to the headlight relay in the engine bay fuse box. One of the connectors get's power ONLY when the ignition is switched on. It's so awesome hehe I've turned a bunch of heads today.
Seraph, I don't think I will get in trouble if the lights are blinking when the car is parked. I'll let you know if get in trouble. Thanks for your input guys!

-Nick