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      04-08-2006, 03:05 PM   #1
smellygas
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Accessing Shark Fin Antennas

Does anyone know a way to install an additional antenna (for wifi for a carputer) inside the shark fin antenna housing? I guess this would require a) removing and reinstalling the actual antenna and b) finding a way to feed wires into it from the interior. ANybody know?

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      04-08-2006, 04:53 PM   #2
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The inside of the fin is completely filed with a sealed unit containing the tiny recievers for the OEM system.

I doubt there is space for anything else
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      04-08-2006, 05:04 PM   #3
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Fleet, what receivers are in the fin?
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      04-08-2006, 05:10 PM   #4
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Quote:
Originally Posted by poldim
Fleet, what receivers are in the fin?

Depends on your options, but can include

1) GPS antenna
2) Telephone Antenna
3) Sirius Radio Antenna ( USA Only )
4) I believe the new Digital radio reciever is also housed inside

Interestingly they say the ones with Sirius antenas are slightly bigger than the ones without
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      04-08-2006, 05:26 PM   #5
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Thanks...
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      04-21-2006, 05:58 PM   #6
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Ahhh, that blows. Thanks, E90fleet.

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      04-21-2006, 08:23 PM   #7
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Is that correct, E90Fleet, Sirius equipped cars have bigger shark fins?
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      04-21-2006, 11:58 PM   #8
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can i add the fin ? drill a hole on the roof?
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      04-22-2006, 06:26 AM   #9
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Quote:
Originally Posted by E90Fleet
Depends on your options, but can include

1) GPS antenna
2) Telephone Antenna
3) Sirius Radio Antenna ( USA Only )
4) I believe the new Digital radio reciever is also housed inside

Interestingly they say the ones with Sirius antenas are slightly bigger than the ones without
Your Wrong.

90% off the cars are prewired for all 4 and it doesnt matter what country you are in.

I have a 325I, in canada, and am prewired for all 4. The wires lead to the trunk where the nav unit and sirius unit would normally be mounted. Where the spare tire well is in normal vehicles.

The plugs for these are generic and would plug into a wifi antenna/gps antenna and most likely work

I had an aftermarket gps unit and XM radio running off these a while ago.

as long as your car is sirius prewired or nav prewired you will have these. find them in your car configuration.
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      04-22-2006, 12:46 PM   #10
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Quote:
Originally Posted by smellygas
Does anyone know a way to install an additional antenna (for wifi for a carputer) inside the shark fin antenna housing? I guess this would require a) removing and reinstalling the actual antenna and b) finding a way to feed wires into it from the interior. ANybody know?

SmellyGas
Could be tricky. Looking at the parts database it does look like the fin and the internals are actually seperate parts, so you should be able to get into the insides of the fin.

They seem to offer different internals based on the config.

http://www.realoem.com/bmw/showparts...40&hg=65&fg=30
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      04-24-2006, 05:33 AM   #11
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Quote:
Originally Posted by Guess
Your Wrong.

90% off the cars are prewired for all 4 and it doesnt matter what country you are in.

I have a 325I, in canada, and am prewired for all 4. The wires lead to the trunk where the nav unit and sirius unit would normally be mounted. Where the spare tire well is in normal vehicles.

The plugs for these are generic and would plug into a wifi antenna/gps antenna and most likely work

I had an aftermarket gps unit and XM radio running off these a while ago.

as long as your car is sirius prewired or nav prewired you will have these. find them in your car configuration.

That would interest me a lot if true - though there seems to be some arguement here as to whether all have or not.

I'm particuarly interested in the GPS antenna - as I have a pda satnav system - connected to a bluetooth gps unit in the back - and that is hooked up to an external antenna which I sit next to the window - if I could plug my Globalsat GPS unit into the cars external antenna - I'd be very happy!

BUT - I don't have Sirrus or SatNav option - only phone bluetooth connectivity option - so reckon I'm out of luck?

Any advice or exactly where and what to look for in the boot area??

Thanks.
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      04-28-2006, 01:05 PM   #12
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Quote:
Originally Posted by marmite
That would interest me a lot if true - though there seems to be some arguement here as to whether all have or not.

I'm particuarly interested in the GPS antenna - as I have a pda satnav system - connected to a bluetooth gps unit in the back - and that is hooked up to an external antenna which I sit next to the window - if I could plug my Globalsat GPS unit into the cars external antenna - I'd be very happy!

BUT - I don't have Sirrus or SatNav option - only phone bluetooth connectivity option - so reckon I'm out of luck?

Any advice or exactly where and what to look for in the boot area??

Thanks.
Open your trunk.
Revoce the trunk covering piece by lifting and puliing it backwards out of the car.
Look for a set of wires with about 6 inches of velcro wrapping on them.
Unwrap the velcro and examine.
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      04-28-2006, 11:29 PM   #13
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Woh, thanks to everyone for the info!! Maybe I'll tap into the sat antenna at some point.

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      07-03-2006, 10:33 AM   #14
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Hi What type of connector is required to tap into the GPS antenna connection in the boot/trunk?
Any suggestions as to where to purchase one?

Thanks
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      01-15-2007, 06:59 PM   #15
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Sorry to being an old thread back...

Was anyone able to use the GPS connector in the back as an external antenna for a GPS receiver, e.g. Holux 236

Guess,
Do you have pictures of your setup?
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      01-15-2007, 09:48 PM   #16
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I'm interest to connect my Holux 236 to the it also... Holux 236 has a MMCX connector...
Anyone any luck in connecting it? any pics?

Cheers
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      01-21-2007, 07:03 AM   #17
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Hi, anyone knows which connector (A, B or C) is for GPS Antenna?

Cheers
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      01-22-2007, 01:11 PM   #18
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None of them. C is the Bluetooth antenna, A and B are telephone antenna and telephone backup antenna.
The GPS antenna should be "under" the blue box, right of the backup antenna plug. In cars with nav the cable is not there.
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      03-17-2007, 04:34 AM   #19
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Hi,

Does anyone know which wire/s is the following connections, from the wires lead to the trunk where the nav unit and sirius unit would normally be mounted (Where the spare tire well is in normal vehicles).

1) 12Volts (constant 12V) => wire color?
2) 12 volts (only with ignition on) => wire color?
3) Ground => wire color?
4) Reverse gear engage (if available) => wire color?

Cheers
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      03-18-2007, 10:46 PM   #20
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Why is there a backup telephone antenna?
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      08-06-2008, 05:48 PM   #21
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Quote:
Originally Posted by tbonecopper View Post
Why is there a backup telephone antenna?
So you can talk on the phone while in reverse

Seriously, has anyone connected their GPS to the built-in antenna yet? Which wire is it?

Thanks
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      08-06-2008, 05:58 PM   #22
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