Menu Icon

Roadmaster Tail Light Wiring Kit Installation - 2013 Ram 1500

content loading




Products Featured in this Video



How to Install the Roadmaster Tail Light Wiring Kit on a 2013 Ram 1500


Today on our 2013 Ram 1500 we're going to review and install the Roadmaster taillight ball and socket wiring kit for two bar wiring, part number RM-155. Now here's what our brake light will look like when it's engaged. Next we'll go ahead and show you the passenger side turn signal. Here's what it will look like for the brake light on the driver side. Here's the driver side turn signal. Now to begin our install we need to remove the rear taillights. We'll go ahead and lower the tailgate and locate the two fasteners that secure each taillight.

Now with the tailgate down we can see the two fasteners here on the inside. Let's go ahead and remove them. Now as we pull the taillight here towards the rear of the vehicle, we need to free the fasteners underneath. To assist, you could use a flat blade screwdriver. We're just using a little plastic trim tool here.

Pop the taillight free and pull it out. To remove the wiring harness from the back of the taillight assembly we'll press on the connector lock and remove it from the back of the socket. Here on the top one we'll need to pull back on the connector lock, then press on the tab and separate the two. Let's go ahead and set the taillight aside and repeat the same process over on the driver side. Now with our taillight assembly removed, we need to drill out a hole large enough to install the bulb and socket. Approximately a 1" hole saw seems to be about the right fit.

Now when selecting a location that you're going to drill out, you want to make sure that the bulb ends up at least 1" or more away from the taillight lens. Now with our hole drilled out, let's go ahead and install the bulb and socket. The metal tabs that go all the way around the socket assembly will be used to hold it in place. You can see it's a bit loose, so I'm going to go ahead and take my screwdriver and bend the tabs out to get a nice tight fit in our pre-drilled hole. Now we got a nice tight fit.

We'll go ahead and set this taillight aside and repeat the same process on the other side. Next we're going to move to the front of the truck. Here we're going to take the four flat wiring that comes with our install kit, ultimately mount one end here at the front of the truck at the electrical bracket wiring. Now our wiring comes with two connectors, one for each side. We could only use one side, and the other side is going to ultimately get cut off, so we're going to go ahead and cut it off now, drill a hole here in the air dam behind the bracket to run our wire through. Now with the end cut off and our holed drilled in the air dam, let's go ahead and push the wiring through to the other side and pull it out. Now we'll mount it to the electrical bracket. To do that, we're just going to use a couple of the zip ties provided. Now once we have it secured, we'll go ahead and cut off the excess of the zip ties, clean up the install look. Our four flat is secured and we're now ready to route the rest of our four flat wiring to the back of the truck, where we removed the taillights. Keep in mind when routing your wire, stay away from any moving components such as steering or suspension, or excessive heat such as exhaust. I'm going to go ahead and take a little bit of the wiring and just bundle it up and secure it. This will allow for a little slack in case we need to change out the connector or reroute our wiring for any reason. Now keep in mind, as we route the wiring we'll take the zip ties provided with the install kit and secure it as necessary. Our little bundle of wire here I'm just going to zip tie off to the manufacturer's wiring. I'm going to go ahead and set the four pole wiring over the frame and follow the manufacturer's wiring up behind the driver side taillight assembly. Now with our wiring fed here behind the driver side taillight assembly, we need to go ahead and prep it for cutting the wires and connecting to our new bulb and socket. Using my utility knife, I'm just going to gently cut the sheathing, make it easier to get to our wiring. Now be careful as you cut the sheathing not to cut into the jacketing of the wire. Now once where the sheathing cut, here on the driver side we're going to connect to the yellow, brown, and white wires, so we'll need to cut them in half. I'm going to go ahead and strip back and prepare the wires. Now on the other side we'll need to reconnect brown and the white wire for our ground. The yellow wire will not get reconnected, as it does not need to run over to the passenger side. Physically, it will get run over just because it's part of the four flat wiring harness, but there will be no connection with the yellow wire on the passenger side. Now the bulb and socket wiring, we're going to go ahead and prep that by just stripping it back. Now to make wiring it up a little easier, I'm going to go ahead and pull the socket out of the taillight assembly, then bring it over here, start wiring it up. I'm going to take the brown wire that comes from the front of the vehicle we've already got prepped, and the brown wire from the bulb and socket, twist the two together, and use the yellow butt connector to secure them. The other side of this butt connector will be our four flat wiring that we cut in half. Give it a quick tug to make sure it's got a good connection. Next we'll do the yellow wire that comes from the front of the vehicle. This is going to be for the driver side turn and brake signal circuit. The other side of that connector is going to be the red wire coming from the bulb and socket, indicating the action for this side. Again, that's the turn and brake signal circuit. Next we'll take the white wire, again from the front of the vehicle. This provides the ground for the four pole connector, and the black wire from the bulb and socket, which will provide ground for our bulb, twist the two together, using the yellow butt connector to secure them. Other side of this connector will be the white wire that we cut in half, plus an additional wire that we're going to add so that we can create our ground to the body of the vehicle. We're going to bring in our extra white wire, twist those two together, and make our connection. Now that's all of the butt connectors securing our wiring. We'll take the extra length of white wire that we just added, cut it to length, strip it back. Our other end will get the ring terminal that's supplied with the install kit. Now with all our connections made, we're going to go ahead and wrap them up with some black electrical tape just to help keep them clean from dirt, dust, debris and moisture. Now I'm just going to go ahead and take a zip tie and secure our four flat wiring here to the manufacturer's wiring. This will just ensure that it doesn't fall down once we put the taillight assembly back into place. Cut off the excess. Now to ground our ring terminal we're going to take it to the body of the vehicle. I recommend to find a location where the sheet metal doubles up for a more secure ground. Check to make sure we got a good connection. Now with all our connections made here on the driver side, we'll take the remaining portion of our four flat wiring and run it back down underneath the vehicle so we can send it over to the passenger side. Now to reinstall the taillight, we'll take our new bulb and socket, fit it back into the assembly, and then reconnect the manufacturer's wiring. Just like that, our driver side done, we'll go ahead and route our four flat wiring over to the passenger side and repeat the same basic process. Now that we're behind the passenger side taillight assembly, we'll go ahead and take our zip tie to secure it. I'll cut off the excess. We'll go ahead and strip back the three wires we're going to use. Keep in mind, we'll not be using the yellow wire. It's been disconnected as it only gets used on the driver side, so I'll just cut that off short. White wire is our ground. Brown wire is for the running light. The green wire is our action for the passenger side. Just like we did on the driver side, we'll take the ball and socket out of the lens assembly, make our connections, and then reinstall them. Red wire is our action for turn and brake, so it will be the red wire on the bulb and socket side, and the green wire on our four flat wiring side. Then the brown wire on the bulb and socket side matches the brown wire here on the four flat side for the running light circuit. Then just like on the driver side, the white wire is the ground. It's going to match up with the black wire from the bulb and socket. Make sure you got good connections. Then I'll wrap them up with some black electrical tape just to keep the butt connectors clean from dirt, dust, debris and moisture. Then we'll reinstall our bulb and socket in the back of our taillight lens and reconnect the manufacturer's wiring. Now with all our connections made and the taillights reinstalled, we're going to finish making sure our wiring is secured, and cleaning up our install look by cutting off the excess from the zip ties. Just like that, the bulb and socket wiring kit is installed and we're ready to hit the road. That will do it for the review and install of the Roadmaster tow bar bulb and socket wiring kit, part number RM-155, on our 2013 Ram 1500.

Info for this part was:

Test Fit:
Joe V
Video Edited:
Zack K
Video by:
Andrew K
Video Edited:
Joshua S
Test Fit:
Nicholas E
Video Edited:
Jacob T
Video by:
Andrew L
Video Edited:
Dustin K
Installed by:
Cole B
Test Fit:
Shane T
Video by:
Alan C
Test Fit:
Randy B
Video Edited:
Chris R
Test Fit:
Jared G
Video by:
Zach D
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Robert C

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.







^
About Us
photos and videos
1,056,204

Original Photos & Videos

Produced to make sure you know what you are getting and you get exactly what you need.

installations
35,570

Installations Completed

To make sure products work and fit the way they are supposed to.

etrailer call center
2,476,511

Phone Calls & Emails Answered

1,125,924 phone calls and 1,350,587 emails to help find the right solution.

etrailer training
400+

Average Hours of Product Training

We get to know our products firsthand so experts can better help you.

etrailer service
71

Years of Quality Customer Service

Assisting our neighbors and customers, face to face at the counter.

etrailer experts
193,357

Pages of Expert Information

Created to make sure you have all the answers to your questions, from real experts.