Simple,
Thanks for the reply. It's good to know that the headlight assembly fits with no mods. Can I ask where you bought your assembly from? I'm thinking about getting some after market ones I saw on 1Aauto.com. They are $230 for the set.
I'm a little confused with all this wiring harness talk. So if I want turn signals, and DRL's, (does DRL stand for Daytime running lights?) I will need the extra harness? What if I don't care about that since the lower lights will have turn signals do I still need the harness? If I bye the HID kit do I even need to bye another harness or will they hook up directly to the factory harness?
I got mine off of Ebay. It took awhile because I wanted OEM, and the sport model lights, which are smoked. The beam pattern might not be as good on the aftermarkets, particularly if you're doing an HID kit. Are you planning on upgrading to HID?
As far as the wiring harnesses, the one listed with the part number that is shown above, is not really a necessity, but a really good idea. You should probably seal those holes if you plan not to get it, so moisture doesn't get in. You will lose the parking lights, which are the lights that are on when you click the stalk once, not twice which turns on the headlights. I have no idea about the DRL, as I don't have those. Those harnesses are a little expensive, I want to say about 20-30 a piece on partznet.
The additional harness that mario made above is my current setup. What I did was go to a junk yard and find a 90's tercel and looked at their turn signals. Some of them have a three wire connector that will fit the previously mentioned harness that fits the parking light and turn signal for 06 headlights. I then purchased the repair splices listed on Mario's thread, and made a secondary harness, that connects the 06 headlight harness pictured above on my post, to my original 04 harness that is in the truck. So essentially, for a clean set up you will buy 1 harness listed with the parts needed here, and make another harness using the old tercel part and the splices/connector. This will result in the your bumper signals still being your turn signal. The 'turn signal' socket and the parking light socket will essentially both turn into parking lights. So when you click once, both the lights will turn on, and if you click twice, the headlights too. If you turn on your turn signal, both those lights will remain on/off, and only your bumper will flash.
If you decide to go that route, once you cut out the tercel harness you should have the pig tail, which is the plastic connector and three cut wires. 2 should be green and one will be white. The green will be positive, and the white ground. So I chose to strip the end of the green exposing the wire, and twist the 2 together. Then I connected the repair splices using a butt connector, just crimping them together. Before you plug in the repair splices into the connector you bought, look at your stock harness in the car, and how the connector will be plugged in, so you can make sure you put the pos and ground wires from your newly made harness into the correct spot on the plastic connector so you're not mixing the power and the ground cause your lights won't work. Make sense?
If you are NOT going HID, you will need to make and additional harness to convert your 9006 OEM harness to the H11 bulbs for the new headlight housing. This was incredibly simple too, I just went on ebay, and I THINK the user was 'global north' or something, but searched for the appropriate male and female 9006/h11 connectors, which already came in the pigtail form with wires and all. Again, I just stripped the ends, and connected both ends with a butt connector and crimped it. I did this anyway incase one of HID goes out, or they both go out and I can't afford new bulbs, or have to wait for them to come in the mail, I can just go to autozone and pick up some cheap lights and plug them in.
Lot of verbage in there, thats probably not as clearly articulated as in my head.
And just to make clear, while no mods need to be made to your vehicle, you will need that garnish, which is under the headlight as your current one won't fit with the new headlight.