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Old 10-07-2014, 05:43 AM   #1
be..mw
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Join Date: Oct 2014
Location: Poland
Posts: 4
My Ride: E92 335i
OEM Bluetooth retrofit without prewiring

Hi guys,

I'd like to welcome all of you, as I've just joined the board.

My car is E46 320d from 2004. The car is not equipped with any telephone prewiring in the trunk, there is no microfone on overhead panel nor pairing button in center console, although I want to add complete OEM instalation.

I was digging for last weeks about E46 BT and have found planty of articles how to add BT module, but most of them assume car has telephone prewiring installed.

I've also found this article: http://forums.*********.co.uk/showthread.php?t=2218 but this guy plugs BT module directly to BM54 module, which as I guess is placed in the trunk. I don't have radio module in the trunk, just BMW Buisness CD in center console. Although I compared the pinouts for both, and they are almost the same.

What I'm about to buy:
- BT module 5th generation,
- BT module mounting bracket,
- BT antenna,
- BT pairing button,
- overhead microphone.

What I know I need to do:
- mount BT module,
- add new wiring from BT module to BT antenna,
- add new wiring from BT module to overhead microphone,
- add new wiring from BT module to pairing button,
- connect somehow BT module with radio plug.

The questions are:
- is the above correct?
- does anybody have any diagrams, pinouts, useful links in this matter and so on? will be very appreciated..
- did anobody try to install BT module without any prewiring?
- does anybody know the OEM part number of complete wiring?
- did anybody try to plug BT module directly to the BMW Buisness CD with custom wiring?
- does the OEM installation requires any wiring to the fuse box?
- does the OEM installation requires amplifier on the way?

For those who want to dig more in this topic, here are the links I've found and could help:
- http://forums.*********.co.uk/showthread.php?t=2218
- http://www.zhpmafia.com/forums/showt...t-doityourself
- http://bmwmania.altervista.org/artic...th-in-economia
- http://www.bmwbtinstall.com/diybtinstall1.htm
- http://www.kneb.net/bmw/E46/Bluetoot...20Mar%2002.pdf
- http://www.bigpatsfans.com/bt/bluetooth.htm
- http://www.bimmernav.com/bmw_e46_blu..._retrofit.html

Regards!
-_a_
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Old 10-21-2015, 01:12 PM   #2
orb0554
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Join Date: May 2008
Location: Alexandria, VA
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My Ride: E30
Where you able to complete your OEM Bluetooth installation. I am trying to accomplish the same but do not know what wiring harnesses are required. My E46 is not pre wired for BMW cellular telephone.
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Old 10-21-2015, 02:21 PM   #3
be..mw
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Join Date: Oct 2014
Location: Poland
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My Ride: E92 335i
Quote:
Originally Posted by orb0554 View Post
Where you able to complete your OEM Bluetooth installation. I am trying to accomplish the same but do not know what wiring harnesses are required. My E46 is not pre wired for BMW cellular telephone.
Yes, I was able to do it.

What I'd recommend you to do, is to buy used telephone wiring (as I did). You can use either wiring from E46 or from previous models. This will give you 54pin connector and some wires. You don't need all wires to make it work.

First, you need to buy ULF module. As far as I know, there are at least 13 generations of these modules, the newer, the better. Do not buy module 5th generation of lower, as you can meet some problems with establishing connection. You will also need a bracket for ULF module, the p/n depends on your chassis, so you should check exact p/n for your bracket on realoem.

Here are the p/n of modules:

84 21 6 934 552 end of life 06/03 1st generation
84 21 6 938 610 end of life 10/03 2nd generation
84 21 6 934 961 end of life 03/04 3rd generation
84 21 6 950 089 end of life 06/04 4th generation
84 21 6 945 387 end of life 01/05 5th generation
84 10 6 955 522 end of life 10/05 6th generation
84 10 6 969 268 end of life 04/06 7th generation
84 21 6 958 358 end of life 05/06 8th generation
84 10 6 987 546 end of life 9/06 9th generation
84 10 6 980 130 end of life 11/06 10th generation
84 10 9 133 329 end of life 1/07 11th generation
84 10 9 145 007 end of life 5/07 12th generation
84 10 9 154 358 current production 13th generation

Then you should buy BT antenna with the bracket and FAKRA cable to connect BT antenna with ULF module. You can find the p/n on realoem.

Next you need to buy a microphone with the cover and mount it near the rear mirror.

ULC module should be mounted in the trunk, the cable goes under the floor cover on the left side of the car. Near the pillar B, it splits to the armrest where you need to mount BT antenna with bracket. Next it goes to footrest, where it splits to the radio plug and upward to the pillar A, then to the microphone.

You need such wires to be connected to 54 pin connector:
- Mic +
- Mic -
- Mic shield
- Tel audio +
- Tel audio -
- Tel on
- Tel mute
- 12V switched
- 12V perm
- GND
- I-BUS

You don't need eject box with pairing button so far, it's not neccessary to make it work. You can use INPA to initialize pairing or make a short circuit for 2 pins on your ULF module.

For more photos please read some posts from my thread on polish board:

http://bmw-klub.pl/forum/viewtopic.p...t=150#p1919773

If you need some retrofit instructions, pinouts etc. send me your email address on PM, I'll send it back to you.

Regards

Last edited by be..mw; 10-21-2015 at 04:22 PM.
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Old 10-22-2015, 09:39 AM   #4
evanr614
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Location: Columbus / Orlando
Posts: 2,334
My Ride: used 2 have 2 pedals
Might I suggest a easier way to have Bluetooth in your E46...

Install AUX input

Purchase 13 dollar Bluetooth adapter

Walah, completely hidden under the arm rest.

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Old 10-22-2015, 09:44 AM   #5
be..mw
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Join Date: Oct 2014
Location: Poland
Posts: 4
My Ride: E92 335i
Yeah, it's definitely easier But I prefer only OEM solutions, and like challanges that's why I decided to go into it. It also mutes the radio automatically when call is incoming, no need to switch to AUX manually, you have your phonebook on radio display and full control is available through multi function panel on steering wheel. Also, after activating Voice Control, you can control your phone by your voice. ULF module lets you create a voice notes as well. Imho worth trying, not so expensive, if you buy used parts, a lot of "fun" guaranteed.

Last edited by be..mw; 10-22-2015 at 09:45 AM.
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