Provide a wiring port to the roof - Toyota FJ Cruiser Forum
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post #1 of 16 (permalink) Old 07-16-2008, 11:18 AM Thread Starter
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Provide a wiring port to the roof

It seems that everybody wants to put some wiring up to the roof...

Whether it be for lights, CB antenna, GPS antenna, video camera cables, etc., many people have a need for wires to the roof.

People have devised some ingenious and not-so-ingenious ways to achieve this... I would think that some sort of fool-proof, water-proof, idiot-proof port could be engineered to support these projects.
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post #2 of 16 (permalink) Old 07-16-2008, 11:45 AM
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Re: Provide a wiring port to the roof

Well... They have the wiring port for the factory air deflector it must be pretty fool proof if I installed and haven't seen any leaks. The only problem I see with it is that it's seems to use pretty small gauge wiring, it might not be able to handle most applications.

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post #3 of 16 (permalink) Old 07-16-2008, 12:05 PM
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Re: Provide a wiring port to the roof

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Well... They have the wiring port for the factory air deflector it must be pretty fool proof if I installed and haven't seen any leaks. The only problem I see with it is that it's seems to use pretty small gauge wiring, it might not be able to handle most applications.
That OEM light set-up you have requires drilling a hole into your roof. I take it you did not install the lights yourself. I believe the OP was talking about having something installed at the factory that would allow easier access to running wires, i.e. not have to drill through the roof.

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post #4 of 16 (permalink) Old 07-16-2008, 12:36 PM
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Re: Provide a wiring port to the roof

I don't think a hole can be avoided. If you look at the vehicles that are used as police and emergency vehicles with light-bars, speakers etc., you'll find a hole somewhere on the roof.

It becomes a matter of discretion - in other words, where can you put a hole in the roof so it's functional but yet discrete.

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post #5 of 16 (permalink) Old 07-16-2008, 03:08 PM
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Re: Provide a wiring port to the roof

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layonnn previously said: View Post
That OEM light set-up you have requires drilling a hole into your roof. I take it you did not install the lights yourself. I believe the OP was talking about having something installed at the factory that would allow easier access to running wires, i.e. not have to drill through the roof.
When you start adding multiple lights (front rear sides) there just really isn't any way of getting around it. The problem with the factory offering a ready "Plug" simular to what comes with the factory air damm with lights, is that there are to many differnt light manufactuers, different wayspeople might want there lights wired, diffenrt roof racks whitch might put the factory "Hole" in a place that might not work with said rack. For example..

Is i've meantioned before i build emergency vehicles for a living. Ford, Chevy and now dodge offer pre wired "Police Packages" right from the factory that have a harness built in. 9 times out of 10 whenan agencie buys there vehicles with these wireing harnesses we tell them we can't use it, cause the harness doesn'thave enough power points to hook up the equipment they want/have. Ther are litteraly hundreds of different light bars, siren/light controlers on the emergency vehicle market, so the manufactuer isn't always going to have a harness that will work all that equipment. The same can be siad for the aftermarket when it comes to fog/flood lighting GPS and such.
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post #6 of 16 (permalink) Old 07-16-2008, 03:17 PM Thread Starter
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Re: Provide a wiring port to the roof

5150: Interesting line of work! How do you typically handle all that wire traffic? Is there some sort of master port access you install?
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post #7 of 16 (permalink) Old 07-16-2008, 03:23 PM
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Re: Provide a wiring port to the roof

5150, i was't referring to pre-wiring anything. Rather, making it easier to hook up something via a hole already up there.

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post #8 of 16 (permalink) Old 07-16-2008, 08:25 PM
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Thumbs up Re: Provide a wiring port to the roof

I Unbolted The Front Roof Rack Post, Drilled A Hole Under It In Line With The Rack Tube Put A Groument In Roof . Drilled A Hole In Tube Ran Wiring Through Tube And Through Groument Into Cab Reinstalled Rack Mount , The Plastic Mount Provides The Water Tight Seal. I Have Not Had A Leak Yet. If You Do This Be Careful The Air Bag Is Right There. So Pull Head Liner Enough To See Where Your Hole Is Drilled I Also Ran A Ground From Inside Cab Through Groument To Roof Rack And Grounded Rack My Lites Are Grounded To Rack. Reseal Bolts With Sealant. The Hardest Part Was Reinstalling Plastic Mount To Tube Before Bolting Down.if Any Questions Contact Me
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post #9 of 16 (permalink) Old 07-17-2008, 07:15 AM
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Lightbulb Re: Provide a wiring port to the roof

One would think that the biggest concern folks have is the actual drilling of the roof. I know that is one of my biggest concerns and when I mounted my amateur radio antennas on my xterra roof, it took me nearly a year to work up the courage to pop the 3/4" holes for my NMO mounts. After you do it the first time tho, it's old hat and you'll drill anything, anytime... even on your vehicle.

So - my suggestion to Toyota is put a pre-drilled 3/4" or 1" hole on the roof near one or both of the front rack mount points. Put a grommet and a removable rubber cap in there. That way, whatever you want to wire through there, you can do so by removing the interior 'A' pillar panel and snaking the wire(s) through the hole. Drill through the rubber cap, then seal it up around the wire and viola - a no-stress wiring scheme that can be changed any time you want just by buying a replacement grommet/cap and removing minor interior panels.

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Last edited by Wolf; 07-17-2008 at 07:21 AM.
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post #10 of 16 (permalink) Old 07-17-2008, 07:39 PM
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Re: Provide a wiring port to the roof

Quote:
FJR Colorado previously said: View Post
5150: Interesting line of work! How do you typically handle all that wire traffic? Is there some sort of master port access you install?
Typicly, we just drill a hole right under where the harness for the light bar is, instert a hard rubber, or PVC pipe though the hole and pass the light bar harness though that, and silicone so there's no moisture. Ther purpose of the PVC pipe is that on many lightbars, there might be more than one harness (If the light bar has an opticom for example) and it just makes for a cleaner install. Been doing this for years, and never had a leak. (knock on wood)

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layonnn previously said: View Post
5150, i was't referring to pre-wiring anything. Rather, making it easier to hook up something via a hole already up there.
Ahh ok, gotcha. This could be a good idea for those afraid to drill any holes. Only problem i see if some jerk off walking by someones rig and removing the plug for there own personal sic version of a joke. No fun to wake up in the mourning to find a wet FJ interior.

Quote:
AWSM FJ previously said: View Post
I Unbolted The Front Roof Rack Post, Drilled A Hole Under It In Line With The Rack Tube Put A Groument In Roof . Drilled A Hole In Tube Ran Wiring Through Tube And Through Groument Into Cab Reinstalled Rack Mount , The Plastic Mount Provides The Water Tight Seal. I Have Not Had A Leak Yet. If You Do This Be Careful The Air Bag Is Right There. So Pull Head Liner Enough To See Where Your Hole Is Drilled I Also Ran A Ground From Inside Cab Through Groument To Roof Rack And Grounded Rack My Lites Are Grounded To Rack. Reseal Bolts With Sealant. The Hardest Part Was Reinstalling Plastic Mount To Tube Before Bolting Down.if Any Questions Contact Me
This is exactly what i did for my roof rack lights.

Quote:
FJ Wolf previously said: View Post
One would think that the biggest concern folks have is the actual drilling of the roof. I know that is one of my biggest concerns and when I mounted my amateur radio antennas on my xterra roof, it took me nearly a year to work up the courage to pop the 3/4" holes for my NMO mounts. After you do it the first time tho, it's old hat and you'll drill anything, anytime... even on your vehicle.
Yup. Drilling into a roof is no big thing anymore. Done it so much it i wouldn't even think twice about it if it needed to be done. But i can understand how some would be hesatant....
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