How To Install a Roof Mount 50 inch Light Bar on a 2004 GMC Sierra – Auxbeam


– [Donny Smith] Hey Donny Smith here. And in this video we’re gonna
show you the steps we took to hook up this light bar
on this 2004 GMC Sierra. Jordan decided he wanted a
light bar for his pickup. He just got this pickup. So we contacted our friends at Auxbeam and they sent us a light
bar for this pickup. So we’re gonna show you the
steps we took to install it. First thing we did is
just set it up there. We kind of put the brackets
on and set it up there just to kind of see how
it was gonna all align up. And then I kind of determined
where we want it to sit, where we want the brackets to sit. And by the way you will
need to get brackets for your specific pickup. This is for the GMC Sierra. I’ll put a link down in
the description for that in the light bar. But it does take specific
brackets for it to fit right on your make and model. But anyway, we’re getting it lined up. Where we want it to sit. And we looked at the location. And now I’m putting the brackets
right where they were at. I had some reference points
that I’m going off of. And now I’m gonna mark the
holes that the bracket, you know where it screws
into the pickup right there. So I’m just marking them with a pencil. And once I have those marked, I’m gonna drill those out. We’re gonna put some
sheet metal screws in it. Some good sized sheet metal screws. So we’re drilling the holes and then we will screw the screws, you know the screws through the bracket into the pickup right there. And you can see where the
three holes are located. And we’re doing the
same on the other side. And now we got the bracket
and we’re putting it, installing it now. Notice it’s loose. I don’t want to tighten
the bracket at this point. I want to leave everything kind of loose until we get the light bar
on and see how it’s all gonna line up in our final aligning. So I’m just putting the
screws in and leave them a little bit loose. I do this side then I’m
gonna do the same thing on the other side. Okay, now we have both the brackets on. And like I said they’re loose. And now we’re gonna set it up there. And the brackets real loose, and I think Jay gets confused
because the bracket’s down too low. But I tell him that you know
after we get the light bar on we can adjust everything
and tighten it up. I was telling him it’s
gonna sit about right there. So anyway, we went ahead
and put the light bar on. And then we bolted the
light bar to the brackets. There’s a bolt that
goes through each side. So we screwed those in. And again we didn’t tighten
that all the way yet either. We’re gonna leave everything loose, get it aligned, and
then tighten everything. Now, this is Jordan’s pickup. I don’t know if you’ve watched
my videos for a long time but these are my twin boys. And they’re grown up now. I don’t know if you remember
like on the Mustang project, you know they was little bitty guys. And they’ve helped me out with
a view videos along the way. They didn’t go into this career, they’re both in construction now. They do sheet rocking,
framing, things like that. But yeah, they’re all grown up now. Like I said, if you’ve
been watching my videos for a while, man they were
just little bitty guys when they started out. So, time flies. It goes by fast. So anyway, we’re getting these
bolts into the side here. Just getting them started. Jordan’s all ready got his in, Jacob’s working on his. And once we get them
started we can kind of get the light bar aligned where it should be and tighten everything up. Getting the drill ready
to tighten em up there. And you notice Jacob’s getting that thing aligned just right, that’s one thing you don’t want to do. If that’s not perfectly
aligned don’t force a bolt into the threads. Because you’re gonna cross thread it and then you got a mess. That’s something that
you don’t want to do. So make sure everything
is going in correctly before you start tightening it up. So now we got everything hand tight. Got it aligned where we want it. And now we’re just gonna start
tightening everything up. First we’re gonna tighten the
brackets up on both sides. And then we’re gonna come
back and tighten the bracket to the light bar up. There might be some final
adjusting we have to do on the light bar. But we’ll do that, you know,
later after we can aim it and see how it sits and everything. We got all that tightened up. And now I am pulling that
inside weather strip off. And we can start running these wires. So I’m gonna get that main wire that goes to the light bar and I’m gonna
run it down this A pillar. And I’m gonna go ahead
and pull this trim off in case we decide we need
to go inside of there you know to run some of the wiring. And I’m just gonna run that down. And then we’re gonna run
this wiring right there through the fender right there. And you can see where I am
running the harness through. And I’m just running it
straight through the fender. And if you look through
there you can see where that goes in through the door opening. And you can pull it through right there. And once we have that through, we can plug the light bar in. This is the main harness
that goes, you know, to the light bar. And then we’ll still
have to run the switch here in a little bit. We’re getting that plugged in. And this is where I’m gonna put the wire. Just kind of run it right underneath that weather stripping right there. Now I can put that back in. Get that pushed on. And all these weather strippings they just pull of and push on. Easy to remove and install. There’s no clips on these. So it just, it has kind of
a channel that fits around that pinch weld and you know
keeps it tight on there. And now I’m putting the
outside weather strip back on. Now where that bracket’s at, it’s gonna be a little bit more difficult because it’s right there. So you’ll have to, you know,
hit it down a little bit for it to seat properly. So that might take just
a little bit more work. Once you get around the
bracket you just follow it down that A pillar, you know to get the seal on. So I’m getting that on. And then we can continue. Okay, now here’s the wiring harness. And these are the relays. Now this is the negative and the positive. The negative I’m gonna hook
up to the battery right there, and the negative, or the positive. And the negative I’m
gonna hook up to a ground. You notice that bolt right there. And I also have these relays
that I’m gonna have to hook up to the fender. I’m gonna have to remove this
battery in order to do that. And as you can see I can
just fit it behind all that and screw it into the fender well there. So we’ll do that in a little bit. Okay, now we have the switch wires that we’ve got to run through. And this is your negative
and positive that go in and connect to the positive and negative inside the pickup. And I’m running those through. I’m kind of getting them
out of the hinge way. So that’s why I’m running
them back behind that. And now we’re gonna run em
back through that same spot we were in, those other ones. So these wires are kind of flimsy. So we’re gonna use this wire
to help push those through. Help fish them through. So I’m gonna tape that together. And then once it’s taped
together I’ll push it through. And then you can easily pull the wires and everything through. It makes it pretty easy, you know, using something like that. This is just a welding rod
Oxy-Acetylene welding rod. If you didn’t have that
maybe a coat hanger or anything like that would probably work. So now he’s plugging the harness in. He’s gonna get that plugged in and then we’ll wire it inside
and have that ready to go. So here’s the fusebox right here. And the first thing I’m gonna
do is hook up a test light. So I’ll put that on the ground. And what I want to do, Jordan wants this to be
able to turn on and off without the ignition on. So he wants something that
powers up with the ignition off. So I’ll pull that fuse
off the one that powers, you know, stays on all the time. And put this adapter in. I’ll put a link down. This is an adapter that gives you a wire that you can tie into. And you put the fuse in this
adapter then you can plug that whole thing into where the fuse was. And what this does, and then it has the wire that comes out and you can connect another wire to it. So I’m gonna connect that. I’m gonna crimp it down. Right there. We’ll get that crimped down. We’ll make sure it’s in there good. All right, now I’ve got the positive and now I can attach the negative. And that bolt right there, you can see it right there. I’m gonna loosen that up. And then I’m gonna put the negative wire, attach it right there, and then tighten that back up. So I’ve got the negative, I’m just gonna slip it behind there. Now I’ll tighten it back up. Now I’ve got those connected, I am just gonna get a zip tie. I’m gonna fold these
wires up and zip tie em, just to make em nice and neat. And then once it’s zip
tied I can push it back in the fuse box area, and then put the fuse cover back on. So I got that tight. And I’m gonna cut the
end of that zip tie off. Just to keep it out of the way. And now I can tuck that in there and put the cover back on. And it just pops in. You can just pull it out,
you know, it pops on and off. It’s very easy to take
this fuse cover off. Okay, now I’ve got some alcohol and I’m just wiping this down. Cause this is where we’re
gonna put the switch. He wanted it on his A pillar right here. So I’m just running that right under the molding right there. And this is double sided
tape, the way this works. And I’m gonna peel that backing off. And the reason we put the alcohol is so that it sticks well. It’s not pulling off or, you
know, comes off or anything. That just cleans it real good to where that will stick real well. I was asking him, you know
making sure this is where he wanted it. And it is. So we push it on real good. You want to push firmly. And now we’ve got his switch on. Okay, this light bar also
came with some covers, four different covers. And what I’m thinking they
are is they kind of help, you know this is a spot light, and I think this just kind
of makes a flood light out of it. Kind of disperses the light
a little bit on the ends. So we’re putting those one. Two go on each side. And I may be wrong with
the purpose of these, but that’s what I’m thinking they are. But they just clip on to the ends there. You just put one end, set it
in, and then push the top in, and then it clips into place. Real easy to put these on. Once we got these on, basically have the light bar installed. Still gotta do some zip
tying under the hood. But we’re gonna see what it looks like. And it is really bright. It’s really hard to tell. This camera tries to auto
focus and adjust for all that. But man, it is a really bright light. It’s gonna be able to see well. And now we’re also gonna get it outside and then we might have to
adjust that bar up or down a little bit. You know to get it aimed just right. And it also has a dim and a bright. You know I don’t know what the dim’s for. You know it has two different
buttons for each setting. Anyway, pretty cool. Now we’re just going under the hood, we’re gonna do some zip tie and make sure everything
is good and tight. Putting everything back
together and we will be done. But anyway I really do appreciate you for watching this video. And if you have any questions
be sure and leave a comment. I will put some of the
information about the light bar in the brackets in the description below. And thanks for watching and we will talk to you in the next video.

34 thoughts on “How To Install a Roof Mount 50 inch Light Bar on a 2004 GMC Sierra – Auxbeam

  1. Installed mine and now the check engine light is on and it says reduced power…

  2. what is the route you use for the hot wire up to the light bar? Are you drilling a hole in the roof to access the light bar?

  3. Thanks for the vid guys, ive got a 06 silverado and everything was so similar to mine because gmc and chevy are basicly the same, oh lol btw the way u guys wired into the cab through the side door is how i have done every other lighbar ive ever installed, nice to know im not the only one, thanks guys

  4. Why not go threw the firewall instead of running wires where they can get pinched or seen. I would go threw firewall and under dash to fuse box it would look much cleaner.

  5. This was an amazing video it helped me fully understand the proper way I should install my light bar on my truck after I watched this I readjusted my light bar the way you did it and now my truck looks great you earned my subscription and a like

  6. Do yourself a favor, always, always run the wires through the firewall and not through the door and fender.. Just asking for problems.. and make sure you have a fuse right at the battery

  7. Isn't there a spot in the firewall to run the wires through? Looks tacky and I wouldn't want the door constantly closing upon the wires.

  8. Video was really helpful for me with mounting one to my dads truck but I was advised that any connection you electric tape them just to be safe thanks for the video though

  9. sweet install….check out what i did on my 2017 tundra
    https://youtu.be/6udRYMShX-g

  10. Very very nice bro 👍👍
    Can you show how to install Toyota Tundra 2011

  11. come on fellas, this is a dodgey set up if ever I've seen one.
    You really need to sort that wiring out and do it properly.
    You're gonna end up with issues down the line, not doing stuff properly in the first place.

  12. If I want to remove the lightbar and brackets down the road, do I risk leaks because of the drill holes

  13. As soon as I saw he where he ran the wires
    For the switch and fuse and shit . I just disliked it and stopped watching . And how he just put the fuse cover over it like bruh nooooooooooo

  14. What did you spliced into the fuse box and why? Seems unnecessary.. fuse should be near battery and done. I agree with other commitments, through firewall would be best for a more professional install.

  15. Thanks for the video broheim! I loved it. You got some good boys sir 👍🏼👍🏼

  16. Everything was going so well till the fender part… Big ''no!!!no!!!''….

  17. My truck has a factory set of fog lights, so to power on the light bar, I just connected the relay to the flog light to power it. When I power on the fog lights, the light bar comes on.

  18. don't like those fuse taps for a lot of functions. too often i see people put a higher current load rather than using it for relay triggering then wonder why they blow fuses. but then fix it by putting higher rated fuses in and wonder why their components shit themselves completely when theres a short. too much current flowing that doesn't bust the fuse. if your don't know what your doing perhaps get a suitably trained person to assist rather than rely on youtube for electronics.

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