Foglight Add-on Relay Wiring Kit

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Availability: In stock

Ships Monday, October 23 if ordered in the next 2 days, 14 hours and 26 minutes!

Foglight Add-on Relay Wiring Kit
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Foglight Add-on Relay Wiring Kit

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This comes with a standard accessory relay, with connectors attached in your selected size, and two T-tap connectors so that you can add fog lamps safely onto your vehicle.

Choose your output plug size.

See installation tab for recommended use.

  1. Perfect fit Review by Ron

    Got this for my parents new car that didn't come with fog lights. Made installing lights way easier than the factory option. (Posted on 5/26/17)

  2. The cables that saved my foglights Review by PhoReels

    To start off, the fuse that connected to the bulb was fried and showed a bit of erosion on the bulb pins. After getting help from a buddy of mine and a DD customer service rep, I was able to buy the relay cable separately (I don't know that). I appreciated the fact that they took the time to look for the item and even send me the link.
    Top grade customer service! Now my dogs are working beautifully! (Posted on 4/14/17)

  3. Great idea Review by Ron Jr

    I was looking how much the wiring harness for my wife's Hyundai Tuscon for the foglights and say how difficult with removing the steering wheel and air bag.
    This add-on harness is the perfect solution to add foglights that work flawlessly but only downside is they turn on with headlights and don't have control of them individually. Doesn't bother me too much and my wife is happy to have foglights.
    Paid $70 for the lights on a different site and $20 on the harness so way cheaper than $250+ for OEM. (Posted on 12/8/16)

  4. Very very easy to install Review by Matt

    I had bought fog lights from online somewhere else and when I tried to install following diode dynamics video I realized my wires were not like diode dynamics. The video seemed really easy so I decided and to buy diode dynamics harness and followed step by step and took me maybe 30 minutes. It was super easy and quality was much superior than the one I got from the other company. (Posted on 11/22/16)

  5. Foglight Add-on Relay Wiring Kit Review by Vladimirp

    Thanks friends for wiring for installation of fog lights of my Hyundai Elantra 2013. Fast shipping to low-cost... (Posted on 9/2/16)

  6. A+++++!!!! A Must Have Product!!! Review by JONATHAN

    So, I recently installed Headlight HID kit to my Kia Optima Hybrid LX with H11B Bulbs and Capacitors, everything worked out really good at first then I noticed that one of my headlights would stop functioning. So, I gave DD a call and they sent me in the right direction, ever since I installed this kit, I have no problems with my Headlights nor my Fog Lights, and yes I did install two kits one for each set :D (Posted on 3/17/15)

  7. AAAAA++++++++++ Review by mark

    Could not be more pleased. Fast shipping to my PO Box, heavy duty, inexpensive and is going to make installing fog lights in my 2012 KIA Soul a snap. A lot of information on iffy installations out there. But, saw this YouTube video of a complete kit being installed in a Hyundai and got to thinking I could do the same in the KIA. They had this harness for multiple lamp applications. I am still waiting on the fog lamps from South Korea, but should take just a couple minutes with no major slicing or cutting of stock wiring for the hook up. Was so impressed that I came back and ordered replacement led lights for the same vehicle. They where not the cheapest that I could find, but I am sure they will be some of the better, they also had numerous options regarding color and lumens......... (Posted on 10/15/14)

Worry-free warranty

  • -Full 3-year warranty on all products
  • -No waiting: we usually send new items out with a return label (US customers only)


You will get quick help from our trained staff for any issues.

All Stage Series products carry a limited 8-year warranty.

For further details, please see our full article.

Domestic (US) Customers

  • - Same-day shipping for all orders placed by 12:00 PM CST (or until 4 PM with rush processing)
  • - USPS, for delivery in 3-5 days (on average)
  • - Express services are available, see exact pricing at checkout
  • - Fully Insured


International Customers

  • - We ship to all countries via standard mail
  • - Usually around $10 for LEDs, or $25 for HIDs.
  • - Choose your service on checkout to see exact prices:
  • - USPS 1st Class: 2-5 weeks
  • - USPS Priority: 1-2 weeks
  • - Express EMS: 1 week
  • - Please email us if you are unsure about shipping to your country.

You will receive updates from our site when your order is shipped, along with a unique shipment number to ensure that your order is correctly accounted for. This allows you to easily reply to us if you have any concerns.

Whether your order is big or small, it is tested through many run cycles, and each bulb is tested before shipment. Every single bulb. Every time. And if anything does go wrong, you can rely on our industry-leading warranty for worry-free replacement.

If you're not happy with your items, we want to make it right. So we have some pretty awesome return policies:


30 day return policy. All customers have 30 days from the date of original order shipment to return items.

Full refund, no fees. At Diode Dynamics, we offer free returns. That means no restocking fees, no administrative fees, and no hassle!

 Free return label. If your original order was over $50, you get a free return label for your items (US customers only). If your order was less than $50 or international, you can send the items back through your preferred method.


Within 30 days: If your original order was over $50, you can get new items shipped to you with a return label (US customers only). If your order was less than $50 or international, we can send you the new items first, but you are responsible for returning the old items.

Within 90 days: Any item can be returned for exchange or store credit within 90 days. The buyer is responsible for the cost of the return shipping, and must first return the old items. We'll still cover the postage for the new items.


Please note: due to the nature of custom acrylic pieces, we cannot offer any refund or exchange for returned custom acrylic items.


To make a return or exchange, please request an RMA, or give us a call. When we get it back, you will be notified and credited appropriately.

Again, all returns must be approved, with an RMA. This is so that we can process your return as quickly as possible when we get it. If you would like to return an item, please Request an RMA. Please include as much information as possible about the reason for return.

Alternatively, you can also send us a message, or give us a call!