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  5. 4 Flat
  6. Powered Converter
T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Item # 118569
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Custom Fit Vehicle Wiring

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Tekonsha Trailer Hitch Wiring - 118569
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system. Call 800-298-8924 to order Tekonsha custom fit vehicle wiring part number 118569 or order online at etrailer.com. Free expert support on all Tekonsha products. Guaranteed Lowest Price and Fastest Shipping for T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
  • All Info
  • Reviews (49)
  • Q & A (24)
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  • Why etrailer?

Tekonsha Custom Fit Vehicle Wiring - 118569

  • Custom Fit
  • Trailer Hitch Wiring
  • Tekonsha
  • 4 Flat
  • Powered Converter

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection point in rear cargo area
    • Plug in connector
  • Includes ModuLite to ensure that your vehicle's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed of 16-gauge bonded wire
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage: 7.5 amps per circuit
  • 1-Year limited warranty


Installation

This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located behind the driver's-side interior trim panel in your rear cargo area. Once you've plugged in the tow harness, locate the fuse box under your vehicle's hood and insert the provided 20-amp fuse as indicated in the instructions.


Once installation is complete, the 4-way flat connector will be stowed in an out of the way location in your cargo area.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


ModuLite Powered Tail Light Converter

A ModuLite power module is built into this T-One connector. Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your vehicle's three-wire system need to be combined so they are compatible with the wiring system of your trailer. This power module functions as a tail light converter to combine the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your vehicle operate.

With a ModuLite, your trailer's lights will be powered without overloading your vehicle's electrical system. Because the module draws power directly from your car's battery and bypasses the electrical routes that are used by a basic wiring harness, there is virtually no draw on your tail light circuits.



118569 Tow Ready T-1 T-Connector - 4 Wire

Installation Details 118569 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - 118569

Average Customer Rating:  4.9 out of 5 stars   (49 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.

- 118569
by:

Thank you that nice fits working excell ent 702876



- 118569
by:

Everything has worked just fine and the installation was fairly simple with clear instructions. Saved a good deal versus what a local company wanted to charge for installing a similar product. 694639



- 118569
by:

Exactly what I needed at a reasonable p rice 451702



- 118569
by:
2016 Acura RDX

This wiring harness came today so I decided to go ahead a install it. Popped the panel and followed the enclosed directions and darned if it didn't go in in 5 minutes. The hardest part was finding the plug buried behind the panel and then trying to match up the fuse slot under the hood with the layout included in the lid of the fuse box which seemed to be a mirror image of the fuse locations. Anyway, hooked up my trailer to try it out and everything worked great. Kind of takes the fun out of the way we used to do it. 715044



- 118569
by:

This is the second I have ordered a trailer hitch for my car at etrailer. The hitch from drawtite fits the car very neatly and appears to be well made. Installation was simple with instructions provided. The hitch on our new car will allow me to use my utility trailer once again. 435019



- 118569
by:
Acura RDX

Again, a few paint chips but not a big deal. Quickly fixed with some fast drying paint. Installation was reasonably easy, but the space under the Acura RDX when working on the ground is not generous. Post-2012 Acura RDX need to have metal blocks (included) fitted between the chassis and hitch plates due the shaping of the chassis. Getting the holes aligned and bolts engaged while holding up the hitch was the trickiest part. Wiring per the video was simple but it would be helpful to have a video showing how the wiring can be permanently routed out to be mounted on the hitch (as is available for a Hyundai Tucson). 505276


Comments
AWB, thank you for your review. If you would like to route the 4 way wiring underneath the vehicle then you will have to find a grommet hole in the cargo area of the vehicle. If you do not have a grommet hole large enough you will need to drill your own hole using a hole saw, please check the underside of the vehicle is clear of obstructions. Once you route the wire through the hole you want to make sure you use some type of grommet or sealant such as part # 0160297
TremPro 644 Silicone Sealant - 10.1-Fl-Oz Cartridge - White
$10.37
to keep out moisture and fumes. I see you have the Draw-Tite hitch part # 75784
Draw-Tite Max-Frame Trailer Hitch Receiver - Custom Fit - Class III - 2"
$148.69
. This hitch already has a mounting point for a bracket. You will need a 4-way bracket part # 18144
Mounting Bracket 4-Pole Flat
$11.22
to attach to the existing bracket on your hitch.
-- Heather A - 05/07/2018

38249

- 118569
by:

The wire harness was very easy to install on my 2014 RDX and works great. I highly recommend. 825093



- 118569
by:
2013 Acura RDX

Purchased this product and the Curt Class III , 2” inch receiver hitch for a 2013 Acura RDX. Absolutely a perfect plug and play installation that took all of 10 minutes. The online video of this installation is better than the provided instructions. Extremely fast shipping! Received it in two days. Etrailer.com always seems to have exactly what I need and ships it very quickly. Pleasure doing business with them. Customer service is outstanding! 801994



- 118569
by:

Order came quickly and better than I expected Good job 722856



- 118569
by:
Acura

Wire harness is very easy to install on the Acura RDX 710686



- 118569
by:

Had it now for a year. It is perfect! Easy to install and works great! Highly recommend this trailer light kit! 694622



- 118569
by:
2014 Acura RDX

After watching the installation video I installed the wiring harness on my 2014 Acura RDX in about 5 minutes - super easy and works perfect! 549331



- 118569
by:
2015 Acura RDX

As others have stated, very easy to install. Only took a few minutes to set up in our Acura RDX. 549202



- 118569
by:
2014 Acura RDX

The wiring harness was an easy plug in installation. The materials were of high quality. Works perfectly! 524261



- 118569
by:
2013 Acura RDX

not cheap but works great. 523362



- 118569
by:
2017 Acura RDX

The on line video and the enclosed instructions made the wiring harness very easy to install. The whole process took less than 30 minutes. The harness works perfectly. It was shipped and I received it promptly. 441401



- 118569
by:
2017 Acura RDX

received early , now we will see if it installs easy 433542



- 118569
by:

After hours I placed an order for a hitch. Then remembered I forgot to order wiring. I emailed them immediately and called the next morning. They added the wiring and completed my order so I wouldn't be charged shipping on the separate order. That is good customer service to me! 423160



- 118569
by:
2017 Acura RDX

Easy install took all of about 10 minutes to install the wire harness. 419492


Comments
Thank you George One year has passed already? Wow! Everything is still working great. I have hauled my Harley up and down California with ease and the system functions perfectly. I was going to rent a hitch and a trailer from U-Haul the first time a year ago but when I saw the price of $179 one way, I decided on buying and installing your tow package for a total of around $140. Best deal I could have made. trailer was $12 per day so still came in under their one way deal. Everything since has been a bonus. Can beat it!!
Mike D - 08/15/2018

42369

- 118569
by:
2014 Acura RDX

Went in very easily with the enclosed i nstructions 419101



- 118569
by:
Acura RDX

Perfect fit. Very easy to install on my Acura RDX. Wiring harness was easy to install as well. 413923



- 118569
by:

At first I could not find the blue harness connector behind the paneling so I read a few reviews that also had the same problem. I found it tucked away and quickly secured it and the rest of the wiring. I want to run it through the body under the frame so it doesn't stick out my trunk. Will try that later. Everything went as instruction noted. The only concern is the length of the wiring that attaches to the trailer. Good job! 409386



- 118569
by:
2017 Acura RDX

Product delivered on-time and is the correct item. I appreciate the great website with concise information and no hassle ordering. 407995



- 118569
by:
2015 Acura RDX

Very easy to install. Watched the online video, and completed install within 30. Have not tested if it works on a trailer yet but so far so good!! 405771



- 118569
by:
2015 Acura RDX

Very easy to install. 403739


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Ask the Experts about this Tekonsha Custom Fit Vehicle Wiring

  • Recommended Trailer Wiring Harness for 2017 Acura RDX
    The three available wiring harnesses for your 2017 Acura RDX are designed specifically for your vehicle and will all install using the same existing ports located behind the driver side trim panel. These are nice, plug-in harnesses that will install quickly to provide your vehicle with a 4-Way connector to power the trailer's signal lights. I recommend going with the Tekonsha T-One Vehicle Wiring Harness # 118569. Tekonsha specializes in wiring/electrical products like this one and...
    view full answer...
  • Trailer Wiring Harness for a 2015 Acura RDX and Where to Stow the 4-Way Trailer Connector
    Trailer wiring harness # 118569 is the correct one for your 2015 Acura RDX. The wiring is designed so that the 4-Way end gets ran out of the hatch when used. The hatch can be closed on the wires as long as you keep it away from the latching mechanism. The vehicle weather stripping will protect it. If you want to run it permanently on the outside of the vehicle then you will need to remove as much of the flooring and panels as you can in the cargo area. Look for a grommet that you can...
    view full answer...
  • 2015 Acura RDX Wiring Harness Installation
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118569 is the correct fit for your 2015 Acura RDX. It comes with a 20 amp fuse that does need to be added to the fuse box under your vehicle's hood. I've attached a video and the installation details to assist.
    view full answer...
  • How Is 4-Pole Connector Routed to Hitch Once Installed on 2013 Acura RDX
    To use the trailer connector, you would simply pull the connector from the spare tire well and plug in your trailer. You then close the liftgate on the wire. The rubber weatherstripping on the rear door is plenty thick enough that closing the door on the wiring will not damage it in any way as long as you keep the wiring away from the latch, which WILL damage it. This seems like a very strange way of routing the cable, but keeping the connector stowed in the spare tire well when it...
    view full answer...
  • Curt or T-One Trailer Wiring Harness Recommendation for 2014 Acura RDX
    They both will actually install the exact same. They both use the same trailer wiring connector that's at the rear of your vehicle behind the interior trim panel. I would recommend going with the T-One kit part # 118569 over the Curt part # 56008 though since we have better luck with the T-One brand over the Curt brand in terms of long term reliability.
    view full answer...
  • Is Fuse Installation Required for Both Tow Ready Harnesses # 118500 and # 118569 in Acura RDX
    Yes, both of the Tow Ready trailer wiring harnesses you referenced, parts # 118500 and # 118569, require you to install the supplied fuse in the vehicle's fuse box located in the engine compartment. Please note that these two harnesses are a fit for different model year ranges of the Acura RDX. The # 118569 fits 2013 and 2014 model years while the # 118500 fits 2007 through 2012 vehicles. I have linked an installation video for your reference.
    view full answer...
  • Factory Connection Point for Trailer Wiring Harness 118500 on a 2011 Acura RDX
    First, for a 2011 Acura RDX, you would need to use trailer wiring harness # 118500. The connection point is already present on the vehicle. It is behind a trim panel in the cargo area of your RDX. The small fuse will also need to be installed in a fuse panel. I have included a link to the installation instructions for you to view.
    view full answer...
  • Where Does 20 Amp Fuse Install When Installing a T-One Vehicle Wiring Harness on a 2013 Acura RDX
    There should be a legend on the fuse block that has a complete diagram of where all of the different fuses are. There should be an empty slot labeled (20A) Trailer. That is the slot that the included 20 amp fuse goes in. If you are still having trouble email me a pic of the fuse legend and I will help you find it exactly.
    view full answer...
  • Trailer Wiring Solution for 2018 Acura RDX To Use as Way to Power Ski Bag Warmer
    The max amperage draw of the T-One Vehicle Wiring Harness # 118569 that you referenced is 7.5 amps so if your ski bag warmer draws 7.5 amps you'd be pretty close to shorting it out. Your best option would be to install this kit and then also install the # ETBC7L and use the power circuit of the adapter which would be rated for 30 amps and would easily work well. If the warmer normally powers from a cigarette lighter style of connector you could use the # HM47675 to easily make the connection...
    view full answer...
  • Should 5-Way be Able to Plug Into Vehicle 4-Way and Still Function
    If you plug a 5-way into a 4-way all of the trailer lights should still function like normal with only the 5th circuit not being active. You'll probably need the fifth circuit active so you can back the trailer up without the brakes locking up and for that you'd want the # 20036. For more info on troubleshooting the 4-way check out the help article I attached for troubleshooting tips.
    view full answer...
  • Installation of Trailer Wiring Harness for 2013 Acura RDX
    For your 2013 Acura RDX, the wire harness for a trailer connection needed is the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118569. There is a fuse required that comes with this kit that needs to be installed in the fuse box under your hood. There will be a fuse position labed (20A ) Trailer. If this does not activate your trailer wiring, then there is a relay that will need to be obtained from your Acura dealer. Most vehicles already have the needed relay...
    view full answer...
  • Trailer Wiring Recommendation for 2016 Acura RDX 2015 Toyota Highlander 2013 Ford Edge
    For your 2015 Toyota Highlander the best trailer wiring harness is the Tekonsha part # 118449 as it installs the easiest and has the most reliable converter box. For the 2016 Acura RDX you'd then want the part # 118569 and the 2013 Ford Edge # 118515. For the Ford Edge the etrailer hitch part # e98870 is the way to go. It has great towing capacities and also has a mostly hidden appearance as well.
    view full answer...
  • Trailer Hitch Recommendation for 2017 Acura RDX Front Wheel Drive
    For a hitch confirmed as a fit for your 2017 Acura RDX front wheel drive that would work well we have the Draw Tite hitch part # 75784 which would be our best overall option. It has a 2 inch hitch which is the most popular size with the best capacities and if you were to ever carry a bike rack you wouldn't have to use a stabilizer strap like the Curt hitch requires. I attached an install video for this hitch for you to check out as well. For trailer wiring you'd then want the Tekonsha...
    view full answer...
  • Recommended Trailer Hitch for 2018 Acura RDX
    For your 2018 Acura RDX I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # 75784. This Class III hitch is confirmed to fit your vehicle and will use existing holes in its frame for a no-drill installation. It features a powder coated steel construction and its 4,000 pound towing weight capacity makes it the highest rated hitch available for your vehicle. Since it doesn't require the use of an additional stabilizing strap with non-trailer loads like the Curt alternative, this particular...
    view full answer...
  • Trailer Hitch and Wiring Recommendation for 2018 Acura RDX Towing Small Trailer
    The trailer hitch I recommend for your 2018 Acura RDX is the Draw Tite part # 75784 which is a confirmed fit. I recommend it because it has a two inch opening which has the best capacities, has a concealed crosstube so it will look the best, and because it comes with a bracket for trailer wiring to mount to. For trailer wiring you'd then want the Tekonsha kit part # 118569 because it is our most reliable option we offer for your RDX. Since you wanted to do some towing you might...
    view full answer...
  • Trailer Hitch Recommendations for 2016 Acura RDX
    Because the support strap you speak of would loop over the spoiler, there is a possibility that the weight applied to the strap could break the spoiler. Curt makes a great hitch, but I can't recommend them for every application because some vehicles aren't suited to using the strap (especially vehicles like your RDX that have the spoiler atop the hatch lid). I'd recommend the Draw-Tite Class III hitch, part # 75784. Unlike the Curt hitch, Draw-Tite doesn't have a warranty stipulation...
    view full answer...
  • No Power on Trailer Wiring Harness Green Wire on a 2015 Acura RDX
    To properly test a converter box you will first need to test the wires going into the converter box from the vehicle using a circuit tester such as # 40376. If there is no power on the green input wire then the issue is with the vehicle. Your 2015 Acura RDX may require an additional fuse or relay to make everything fully functional. It looks like under the hood there is a fuse in location 26 that the owners manual just calls trailer. If there is power on the input wires when there is...
    view full answer...
  • Trailer Hitch and Wiring for a 2015 Acura RDX
    No, the 2004 Acura MDX and 2015 Acura RDX require different trailer hitches. For the 2015 Acura RDX you can use Draw-tite trailer hitch # 75784. I have included a link to a video showing installation of this hitch for you. If you plan on doing some towing I recommend etrailer ball mount kit # EBMK4. It comes with a ball mount with a 2-3/4 inch rise or 4 inch drop, interchangeable ball set, hitch pin with clip, and storage bag. If the ball mount kit does not have the right rise or...
    view full answer...
  • Trailer Hitch Recommendation for 2013 Acura RDX Towing 1750 LB Fishing Boat
    I have included a link to the hitch options that we offer for your 2013 Acura RDX. The hitch that I recommend for your 2013 Acura RDX is the Curt Class III Trailer Hitch Receiver, # C13130. This is a custom fit hitch so there is no drilling or welding required for installation and it has a towing capacity of 4,000 lbs and tongue weight capacity of 600 lbs. Although the hitch has a 4,000 lb capacity, I did some checking and it looks as though your RDX has a maximum towing capacity of...
    view full answer...
  • Brake Controller Installation-2013 Acura RDX
    The Acura RDX doesn't have the provision for plugging in a brake controller. The controller would need to be hardwired using our Brake Controller install kit part # ETBC7 and the Curt pigtail, part # C51515. To install the 7-way trailer connector, a functional 4-pole trailer connector is needed. You can install one using part # 118569. The 4 pole to 7-way adapter provided with the ETBC7 kit will plug into the 4-pole, and will have 4 remaining wires that need to be connected. Ground the...
    view full answer...
  • Could Thule Transporter Combi # TH665C Block Vehicle Brake Lights
    The overall width of the Thule Combi part # TH665C is 50-1/2 inches. You'd have to measure the distance between your rear brake lights to know if this would block that. With the third brake light above on the hatch of your vehice you'd be very safe. Especially when you get the trailer wiring installed on your 2014 Acura RDX like the 4-way part # 118569 which I attached an install video for.
    view full answer...
  • Trailer Hitch and Wiring for a 2016 Acura RDX
    We do have trailer hitches and wiring that will fit your 2016 Acura RDX. For a trailer hitch I recommend a Class III hitch because they are more robust and have a 2 inch receiver that is compatible with more accessories. Curt Class III hitch # C13130 is a popular option for the RDX. I included a link to a video showing an example installation for you. For trailer wiring you can use wiring harness # 118569 to add a 4-Way flat connector to the back of the vehicle. If you plan on doing...
    view full answer...
  • Recommended Wiring Harness and Installation Instructions for 2013 Acura RDX
    The Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118569 as well as the other custom wiring harnesses we carry will all install in a similar manner. This custom-fit T-One connector plugs into your Acura RDX's wiring harness, which is located behind the driver's-side interior trim panel in your rear cargo area. Once you've plugged in the tow harness, locate the fuse box under your Acura RDX's hood and insert the provided 20-amp fuse as indicated in the instructions. The...
    view full answer...
  • Recommended 2 Inch Hitch for 2013 Acura RDX
    Yes. I recommend using the Curt # C13130 because of the durability of the powder coating on their hitches. This has a 2" receiver that provides you with a better variety of hitch mounted accessories and is much better suited for towing if the need arises. If you're going to be towing, I've listed the appropriate wiring harness and other parts you'll need to complete your towing setup below. Wiring: # 118569 (Tekonsha has the most reliable converter boxes) Ball Mount/Hitch Ball:...
    view full answer...

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Info for this part was:

Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Video by:
Joshua S
Video Edited:
Jacob T
Updated by:
Adele M
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Alexander C
Updated by:
Isabelle B
Installed by:
Cole B
Test Fit:
Brent H
Test Fit:
Ryan G

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