It depends on what kind of kit you have. I used the factory phillips ballast and d2s bulbs with an audi a4 retrofit onto my 99 civic. For this kind of swap, you would need a harness for your swap. It will have a connector for your stock 9006 headlight, 2 12volt relays, 1 or 2 ground cables and 2 15 or 20amp fuses connected to the power line (which connects directly to the positive terminal of the battery). Everything for the harness is a direct plug in. You should be able to figure out how to wire it when you get it. Here's a good website that can help you out. http://faq.auto.light.tripod.com/headlamp-faq.htm (just check on the ELECTRICAL-WIRING RELATED link