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Roadmaster Universal Diode Wiring Kit Installation - 2015 Kia Soul

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How to Install the Roadmaster Universal Diode Wiring Kit on a 2015 Kia Soul


Speaker 1: Today on our 2015 Kia Soul we're gonna be taking a look at and showing you how to install the Roadmaster Universal high powered diode wiring kit, part number RM-152. Now to help us with our install we're gonna be using the Roadmaster seven wire to six wire Flexo-Coil Kit, part number RM-146-7.Here's what our wiring looks like installed, it is gonna include an umbilical cord to connect our RV to our vehicle and the wiring is gonna allow us to use our factory lights and accept the signals from our RV so that people can know whether we're going down the road with our taillights on, brake lights, and our turn signals. This is gonna take away the need for the magnetic lights you see a lot on towed vehicles and it's gonna use our factory lights and it's gonna have some diodes that are gonna tap into our factory wiring preventing any kind of feedback coming from our RV and damaging our factory wiring.Now that we know how our wiring is gonna work let's show you how to get it installed. With our baseplate torqued down and everything in place now would be a good time if you are doing wiring to go ahead and at least bring your wires while the fascia's off, making it a little bit easier to get where we need to go. I'm just gonna take my wiring, I'm actually just gonna loop it around these posts right here, just leave it right there with a little loop so I have plenty to work with. I'm gonna start routing it towards the engine and once we get it up passed everything I'm just gonna come up behind my headlight here and I'm gonna leave it up in the engine bay for now.With our fascia back on I'm gonna slightly pull my wire out just a little bit.

Then we can take our wire loom and we're not gonna need to use all of it right here, I'm gonna go ahead and cut it in half. I'm gonna slide my wire loom over my wire to help protect my wire and kind of hide the color from showing through the grill there. We just want to slide it on, you can go ahead and slide it up our wire and take a little bit of electrical tape and secure it so it won't be sliding back and forth. Now I do want to mention you want to leave yourself a little bit of room here so we'll have some room to work with with our wire.We're gonna want to split or separate our wires, so you just take a pair of cutters and very carefully cut in between each one of the wires and want to really try not to cut into the wire itself. Once you have a little bit separated you should be able to grab it and separate our wire like that, you just want to give yourself a few inches so it'll be a little bit easier to work with.

We're gonna do that for all of our wires here.With our wires separated we can take the boot off of our connector and slide the wires through, for now I'm just gonna push it back as far as I can get it so it's out of the way. Now we're gonna need to strip back all of the ends off of each one of our wires here. Now if we look at the back of our connector here where all of our connection points are gonna be labeled. We're gonna start with a very top one which is labeled TM for trailer marker, that's gonna be our brown wire so we can go ahead and insert it and tighten down the set screw. GD is gonna be for our ground which is the white wire.

LT is gonna be for our left turn which is the yellow wire and RT is gonna be for our right turn which is gonna be our green wire here. We're gonna repeat that process putting all of our wires in the correct connections points until we have all of them in there.This is what it should look like once you're done and before I put my boot back on I'm actually just gonna kinda fill this entire area with some dielectric grease to hopefully keep out the moisture and stop corrosion from building up inside. Put some in there and we can slide our boot back in place. I'm actually gonna take some electrical tape and wrap it up and wrap the end up as well. This is just gonna keep that boot in place and hopefully help seal it up a little bit and I'm also gonna wrap the excess wires to help protect them and keep the color from showing through our grill here.Now we do have a bracket mounted to our baseplate here that we're gonna be attaching our electrical connector to.

I'm just gonna be taking some self tapping screws and screwing it right into the bracket. I've got one in place loosely so we can still make any kind of adjustments we need to so we can get the other one in place. We can start working on getting our four pole wiring to the back of our vehicle. I'm just gonna take the end of it and start routing it towards the firewall, going around all the wires and lines, and I'm actually gonna drop it down right in front of my brake booster here. Just want to be careful to watch any moving parts or any heat sources so it doesn't damage your wire. We're gonna drop it down so we can reach it once we get underneath the vehicle. Then we can pull all the excess slack out and start running it towards the back.Now here's where our wire came out and we're gonna have to route this to the back of the vehicle. Everybody's gonna do it a little differently, just want to mention you want to stay away from any heat sources or any moving parts like the suspension. I'm gonna go ahead and route my wire and I'll show you how I ran it. I went over my sub frame here, started running my wire I went underneath this cover, and I came out from under the cover right here where all my lines we're and just secured it to some factory lines, went around the fuel tank, again securing it to some of the factory lines, went over the EVAP canister, then I secured it to the back bumper so that my wire's right in the middle.We're gonna need to separate the wires just like we did up front. Just gonna split the wires at the very end and this time we're gonna take and split the wires all the way to the very center of our bumper. It's gonna take a little bit of time, just work on one wire at a time to make it a little bit easier. We'll start with our white wire here and we're gonna need to find a piece of sheet metal because this is gonna be our ground wire so we're gonna find a spot that we can attach it to.Go ahead and estimate about how much wire I need, making sure that I can still secure it and have enough room to zip tie it so I don't have wires hanging out. We'll go ahead and cut back the ends and strip the end of our wire. We can take the provided ring terminal in our kit, slide it over the end of our wire, and crimp it down. They do provide us with a self tapping screw, just need to find a 5-16th nut driver and we can secure it right there to this sheet metal.Now that we have our wires running to the back we need to figure out if our vehicle has combined or separated brake and turn signals and then once we figure out which one of those they have we need to figure out which one is our taillights, brake lights, and turn signals on the back so I'll go ahead and run them so we can see what we have. With the head lights on with our taillights on we can see that the outer ring is gonna be our taillights and if I push on the brake we can see that bottom section of the outer ring is gonna be our brake lights. Now if I keep my brakes on and I turn the turn signal on we can see that it is a separate bulb.Now we're gonna need to open up our hatch and remove our taillight assemblies. Now on each side we're gonna have a few screws holding the assembly in place and we'll be using a Philips head screwdriver to remove those and we'll go ahead and remove the other ones on the other side as well. Now when you go to remove the taillight you're gonna want to pull as straight back as you can, maybe giving it a little bit of wiggle, but there are some pins back here that hold it in place and you don't want to break those. Once we have it removed we can go ahead and disconnect the harness, so there's gonna be a tab right here so we can just push in on that tab, pull the harness out, and set our taillight aside.I had my headlights on and we're gonna go and check each one of these pins so we can figure out which wire corresponds with our headlight signal. We can see that this bottom right pin, if we're looking at it with the clip on top, is gonna be our green wire with the black stripe, that's gonna be our headlight signal so we're gonna need to write that down or remember that. Now you want to grab an extra set of hands or prop something on the brake and turn all of your other lights off and we can check and see which wire is gonna be for our brake signal. It's gonna be the green wire with no stripe, just right above our taillight signal so we can write that down as well.Now you're gonna want to either slide this tape up or peel it back so we have a little bit more room to work with so we can work with our wires because we are gonna be tapping into them. Now we're gonna need to get our wiring up to our factory wiring here so I'm gonna take an airline tube and I'm actually gonna pass it through the body in between the bumper and the body here so I can reach my wires and then pull it up. Now if you don't have any airline tube you can use a coat hanger whatever you have available, you just want something that's gonna keep its shape when you start pushing and pulling on it. My airline tube did come out, I did have to reach up in the bumper just slightly and it's gonna come out right here.Since we're on the drivers side we're gonna want to grab our yellow and brown wires and send them up. I'm just gonna take my two wires and I'm gonna put them inside my airline tube and come back with a little bit of electrical tape so I don't have to worry about losing them when I start pulling. We can come back up top and start pulling my airline up, pulling all the slack out of our two wires. We're gonna start with the brown wire and that's gonna be for our taillights and if we remember or wrote it down that's gonna be the green wire with the black stripe. You're gonna want to cut this wire back a little bit from the connector so you have some room. I'm just gonna cut that wire right in half and then we're gonna strip back both ends. We're gonna grab one of our diodes and for this one you're gonna want to grab the one with the yellow connector on it. We can take our two blue connectors and we're gonna be crimping them on to our factory wires that we just cut.Now if we look at our diode we're gonna have two inputs on the inside and one out. The out is gonna go towards our taillight socket so we can go ahead and plug that in. We can take the other blue connector and put it on the inside. We'll undo our yellow connector and we're gonna take and estimate about how much wire we need from our brown wire to reach and we can cut it off and strip back the end. Now you're gonna want to hold on to that excess wire that you just cut off and we're gonna strip back the end of the wire coming up and the excess wire. Now we're gonna take these two ends and twist them together and we're gonna put them into our yellow connector and crimp it down. We can take it and put it into the other inside of our diode.Now the excess brown wire that we just attached is gonna have to go back down to our bumper and it's gonna cross over to our passengers side. Now it looks like we're gonna be just shy of reaching everything so I'm gonna take some extra brown wire that I have and attach it together and if you need some extra wire you can pick some up on our website using part number 16-1-1 and that's gonna be 16 gauge wire by the foot. I'm gonna go ahead and strip back both ends of this wire and since it's gonna be on the outside or more or less on the outside of my vehicle I'm gonna be using a heat shrink butt connector to put them together. Now if you need to pick up some of these you can use part number DW05744-5 and that'll be for a pack of five of them. I'm using a heat gun to shrink down my connector here, just want to mention if you are using an open flame such a torch or a lighter you wanna be extra careful not to burn or char the wires or the connector itself.Now we can focus on our yellow wire here. Now this is gonna be for our left turn signal but it's also gonna be for our brake signal. Even though we have a separate wire and it goes to a separate signal we're gonna be using the brake signal wire which then in turn is going to become our towed vehicle's turn signal as well. We're gonna be grabbing the green wire and we're gonna do the same thing, cut it in half and strip back both ends and then we can grab one of the remaining diodes.Grab two of the spade connectors and we're gonna crimp them on to the two wires we just stripped. Then again making sure that the outside of my diode is going towards the taillight socket, we can plug that in, plug the other one into the inside. We can grab, again estimate about how much wire we're gonna need it never hurts to give yourself a little bit of extra for flexibility and we can cut back the end and strip it back. We're gonna be crimping that last spade connector onto the yellow wire. Plug it back into the inside of our diode, now we're just gonna need to work on getting this brown wire back through the bottom again to meet up with the body.I'm gonna feed my airline tube back down to the bumper and just reverse the process that we did earlier and pull my wire down. Once you have your wire down you're gonna have to pull all the excess slack out. With the left side done we can go ahead and plug our connector back in, make sure that we have room on where we're gonna put our diodes. What I like to do is on the back of our diodes here we're gonna have some doubled sided foam tape, take the backing off of them, and you stick them together. Just want to make sure that your wires are gonna be out of the way and then we can put our taillight back in place. Then we can put all of our fasteners holding everything down.We can go ahead and pull our passengers side taillight out and again remove the clip holding the connector in place and we'll set this aside for right now. Now on the passengers side we're gonna need to verify which wire is for our taillight signal and which one is for our brake signal. I have the taillights on right now and if I check each one of my pins I'm only getting a signal at the bottom right. If I have the clip on top this is gonna correspond with the brown wire with the black stripe. We can go ahead and remember or write that down. Now with the taillights off and the brakes on on the drivers side there was that green wire so we can go ahead and double check to make sure it is and that none of the other pins are getting a signal as well. Again our brake wire is gonna be the green wire and our taillight signal is gonna be the brown wire with the black stripe on the right side.I'm gonna take that same airline tube and I'm gonna use the same method just on the right side here, feed it down, grab my green and brown wire this time, and start pulling it up. We can take the green and brown wire that we have left and attach it to my airline tube and start pulling it up. You want to pull all the excess slack out and make sure that you don't have anything bundled up underneath that might be getting caught. We're gonna start with our taillight signal which is gonna be our brown wire and the brown and black striped wire on the factory harness. I'm gonna go ahead and cut that in half, strip it back, and grab one of the diodes. Now that we have those two connected we can go ahead and take our last spade connector, estimate about how much we need, cut it back, and crimp on our last spade connector. The brown wire is gonna be for out taillight signal which will be going into this diode with the brown and black striped wire.We're gonna move on to our green wire which is gonna be for our turn signal and brake signal which is gonna be our green wire coming out of our connector on our factory harness. Again cut the wire in half, strip back both ends, and crimp on a spade connector on each one. Our last spade connector is gonna go on to the green wire and crimp it into place, this'll be going to the end terminal on our brake signal wire. We can take the backing off the doubled sided tape on our diodes, stick them together, and grab our taillight and put it back in place. Just want to line up the pins and we can put our taillight back in and secure it down.Before we test everything and make sure everything is working we just want to make sure that our lights are working properly when we're not hooked up to our motor home or flat towing our vehicle. If I push on the brakes you can see that my brake lights still come on, turn on the taillights my taillights still work, and both my turn signals are still gonna work like normal. Even if I have my brakes on and turn the turn signals on everything works the way it should. We can take the coiled wire that comes in our kit, plug it into the front of our vehicle, the other one's plugged into the back of our motor home. Once our wiring's installed you're gonna want to hook up to your motor home and make sure that all your functions are working properly being your taillights, turn signals, and brake lights and make sure that your brake light is not canceling out your turn signal.That'll finish up our look at the Roadmaster Universal high powered diode wiring kit, part number RM-152 on our 2015 Kia Soul.


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