In 99% of aftermarket headlights with real halos, WILL require some modification to your vehicles wiring harness. Some sellers like to use the term "PLUG AND PLAY", but that term has been mis-used by many sellers. Real aftermarket Halos lights will require a separate connection, because most cars don't come with Halos from the factory, so your vehicle won't have a plug or harness for it.
***PLEASE REMEBER. IF YOU HAVE NO PROIR KNOWLEGDE OF YOUR VEHICLE'S ELECTRICAL SYSTEM OR HAVE NEVER DONE ANY KIND OF MODIFICATION TO YOUR VEHICLES ELECTRICAL SYSTEM. WE STRONGLY RECOMMEND HAVING A TRAINED PROFESSIONAL INSTALL THE LIGHTS FOR YOU. ****
This is just an Example, your actual lights may not look like what we shown, but the blue prints are very similar.
So here are some tips on installing aftermarket halo headlight into your vehicle. First let me show you what a typical Halo connection looks like on most aftermarket lights.
First you have to identify which wires are for the Halos. Example of what they may look like
The colors of the wires will vary. But in most cases they will be two different colors, to separate the GROUND wire from the POWER wire. To identify which is which can be tricky in some cases. But in most cases Black or White wires are usually the ground wire, but not in all cases. When you finally make the connection, just experiment with the two wires to test to see which wires are which.
WHERE TO CONNECT THE HALO WIRES TO:.
The most common and recommend place to connect the Halo wires to are on your vehicle's PARKING light wiring harness.
Example of what a common parking/ signal light harness looks like:
From motoblvd
Your signal/ parking light harness will have 3 different color wires. For ground, parking and signal. THE ORDER OF THE WIRES WILL VARY.
After you identify which wires on your vehicle's harness are which, again, if you are not sure, you can just experiment to check which wires are which.
- You than connect the ground wire from your aftermarket light to the ground wire on your vehicles signal/ parking wiring harness.
- And than you connect the power wire from your aftermarket lights to your PARKING light wire, and not your signal light wire.?
- If you connect your power wire to your vehicles signal light wire, this will cause your halos to blink whenever you turn on your signal lights.
- There are various ways to connect the two wires together.
- We recommend using a wire clamp or tap, it is the easiest, fastest and safest way of doing this, they can be found at most auto part or electrical stores. Basically it is a small clamp were to put two different wires together and close down on a locking clamp. It properly connects the two wires together without any cutting of any of the wires yourself.

- If you cannot find or get any of these clamps, you do have other options. But the general rule is to somehow connect or tap into your vehicles wiring harness to connect the halo wires properly.
After that you test the lights to see if they are working properly by turning on your parking light. Here is where you can check to see if you connected the right wires together. If it does not work properly, here is where you experiment with the different wires to see if maybe you connected them incorrectly.
Some aftermarket headlights have what are called a Dual Halo or Twin Halo, that is where there are two halos on each light instead of one. The installation of those are exactly the same process we just went over.
This is a similar way to connect LED lights as well. Adding LEDs to aftermarket lights are now becoming very popular. Than installation of the LEDs on aftermarket headlights are very similar to connecting Halo.
From motoblvd