you will reuse the stock bulbs or just get the silverstars like i sent you the link for. As for the wiring, the bulb itself just pops right in from the stock unit. The tricky part is the halo itself. you need to wire it into the parking lights (turn signals). there are 3 wires in there, one of which has the power. wire it up to that one and the halos will come on with the parking lights. then you can turn on the bulb in the halo itself by pulling out the know like normal. there is a pretty through write up on AM that i used and did it in about 1.5-2 hours taking my time with a helping hand.
Removing the grill is the hardest part btw
