just wire them directly to the parker light wires. thats what i did when i had spotlights on, they were 35 watt H3 bulbs, no problems. but i suggest keep it low wattage, maybe even just small bulbs or LEDS in there cos u might blow a fuse or fry some wiring. I think im also gonna do that, put some lights in that empty area. It would look good with like blue LED's or sumthing! and yes u can get defected for having blue lights, i got fined for having blue lights in my car!