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Thread: Mounting an Antenna on the Roof

  1. #1
    FLAC
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    Mounting an Antenna on the Roof

    I have an antenna for my verizon wireless 3g usb stick. It has a magnetic mount for easily putting it on the roof. Right now I have the wire just going in through one of the rear doors, but I would like to wire it permanently.

    To get the wire into the car, my plan is to drill a hole in the roof, put a grommet on it and then some kind of sealant. Is this a good approach or is there a better/easier approach?
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  2. #2
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    justchat_1's Avatar
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    I think most OEMs go through the rear window seal...but might be pretty tough post-manufacture.

  3. #3
    FLAC
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    Quote Originally Posted by justchat_1 View Post
    I think most OEMs go through the rear window seal...but might be pretty tough post-manufacture.
    Yeah, that would definitely be quite a bit of work. Looks like drilling is the way to go.
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    High Voltage blk02si's Avatar
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    I would just mount it on the dash looking out the windshield. No exposure to the elements and it will work just fine.
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  5. #5
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    Quote Originally Posted by blk02si View Post
    I would just mount it on the dash looking out the windshield. No exposure to the elements and it will work just fine.
    It depends on what you consider "just fine." The performance nearly doubles when the antenna is placed on the roof rather than the dash or the rear deck. Plus the antenna is fairly large and looks very out of place on the dash.
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  6. #6
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    My general rule is anything satellite based goes (just) under the dash-although on top works just as good...but for anything ground based you want either a roof mount or a pillar.

  7. #7
    Variable Bitrate UnusuallyGenius's Avatar
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    I used the drill method for both my roof antenna and my warning lamp. that works perfectly.
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  8. #8
    Mod - iPad Forums RipplingHurst's Avatar
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    I just did fit an Antenna for my AT&T 3G in my Infiniti. It went through the hatch, and under some rubber grommets. You can use those flat plastic things used to remove plastic parts in the dash, or two credit cards, one lifts the rubber, the others shoves the wire in there.

    I don't have pictures of that yet, but I did something very similar in my Sequoia (XM radio antenna, installed using factory location and directions):




    Look at the rubber profile. It's like there's a pocket just for that!

    Maybe yours looks just like that?

  9. #9
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    yay, something i might be able to help with. I worked at circuit city in the install bay and we used to run the antennas for satellite radio. 3 options for you

    Option 1. just like rippling hurst said starting from outside we would place the antenna in the middle of the car on top. then tuck it right along the rubber seal around the window down the side. i always used a hook pick but could also use crdit cards screwdriver (Just be careful not to rub or puncture the wire) down the side of the windshield and across the gap where your front pillar meets the rest of the body, then through the door jam against your fender with some electrical tape to hold it, then behind dash or wherever you need to go with it. Sorry i dont have any pictures but turns out pretty clean. (This way if you dont have a lot of passengers may want to run i through the passenger side door)

    Option 2 would be like someone else mentioned, through the trunk. all the weatherstripping in cars comes of by just pulling up, put 2 layers of electrical tape down on the metal then hold your wire over tape and put stripping back on, up along the rear window as described above, if you want it on your roof or you could just put it on your trunk deck.

    Option 3 is on the car roof front, down along the window and into the engine bay. Then most cars have nice big ol grommets for factory wiring typically easy to get to that run right behind your dash usually above driver pedals or some cars above passenger floor pan.

    Hope this helps, problem with drilling is there is still moisture that accumulates under those magnets and even with a grommet can still cause leaks.

  10. #10
    High Voltage blk02si's Avatar
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    I've also used the 3rd brake light (mostly on trucks or SUV's though) but you can put it on the roof and drop the antenna wire through the 3rd brake light into the cabin.
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