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Bavarian Soundwerks' Mobile Electronics Forum
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Old 04-22-2014, 09:14 PM   #1
xevman
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Join Date: Apr 2014
Location: Melbourne
Posts: 12
My Ride: 2000 323i
Head unit replacement

Hey guys I'm new to this forum and I decided to join as I need some help. I drive a 2000 323i and will be tackling a headunit install. I need to know what the hell the thing is circled in the picture below. I have a hunch it might provide power to the antenna amplifier but I am not sure. Any help will be much appreciated.
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Old 04-23-2014, 07:23 AM   #2
markusmarkus
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Join Date: Jul 2008
Location: USA
Posts: 1,249
My Ride: 2001 330Ci
Hmmmm. The power lead for the antenna amp is part if the main harness.


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Old 04-23-2014, 07:41 AM   #3
xevman
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thats what i thought i can't figure it out what it is.
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Old 04-23-2014, 07:49 AM   #4
KieranG
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Join Date: Mar 2014
Location: NJ
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My Ride: 2000 323i
I have the same car as you, and swapped my OEM unit for a newer one (used from another member) so that I could have AUX capabilities. When comparing the two units, if I remember correctly, the newer one did not have this part on the back, or any extra part for my old plug to plug into at all. I decided to hook it up and see if it would make a difference without the plug, as it had nowhere to go, and voila, no difference to this day... but anyway to answer your question I have no clue what it is but it didn't affect me in any way (besides confuse me). Just telling my somewhat relevant experience with this, good luck!
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Old 04-23-2014, 08:00 AM   #5
Brandon002
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Join Date: Apr 2014
Location: Aurora IL
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My Ride: 01 330i Sport MtechI
Maybe it has something to do with the BMW Integrated phone?
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Old 04-23-2014, 01:20 PM   #6
rbalazsi
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Join Date: Sep 2010
Location: AZ
Posts: 223
My Ride: 323iT, 330Cic
The design was changed on post 9/2001 cars so they no longer use the 2nd connector. This will likely mess with the radio reception in your car, though some seem to not show issues with it.

This thread has some info it and has some links to other threads with more info; but most of the pictures are missing at this point.

Lookup 'diversity antenna' and it should get you what you need.
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Old 04-24-2014, 07:37 AM   #7
KieranG
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Quote:
Originally Posted by rbalazsi View Post
The design was changed on post 9/2001 cars so they no longer use the 2nd connector. This will likely mess with the radio reception in your car, though some seem to not show issues with it.
I have read about this and found that it might decrease the quality of my radio, but I have had literally no difference so far... I guess my car is part of the "some" that don't show issues.
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