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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > **Bluetooth Retrofit Guide** for TCU and ULF



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      09-08-2019, 08:41 PM   #617
Wahish
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amp install

hello, I have a 2010 335i coupe with base audio and no OEM amp I want to know if it's possible and how to wire up an amp for my car.

and what do I need to make my car Bluetooth I have just Bluetooth for calls not for music
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      09-12-2019, 12:53 AM   #618
ctuna
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There are a lot of threads on modifying the base stereo but why
would you think you would get an answer in the bluetooth section.

https://www.e90post.com/forums/searc...rchid=62760866

For streaming blue tooth there is this cheap box if your car accepts
cdc.

http://www.e90post.com/forums/showth...4#post23244354

Or if you want to go factory you will need a combox retrofit and must
have idrive.(the newer idrive)

Last edited by ctuna; 09-12-2019 at 12:59 AM..
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      10-24-2019, 09:40 AM   #619
TheSoundOfSuccess
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Bluetooth module

I have my BMW e90 2010 with a module in the trunk that has bluetooth icon on it. The iDrive allows me to connect via bluetooth to use my phone, however, I'm looking for a way to stream music with it. I'm thinking maybe there is any software update that could solve it? https://ibb.co/NWY5Cqc
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      10-24-2019, 12:17 PM   #620
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Quote:
Originally Posted by TheSoundOfSuccess View Post
I have my BMW e90 2010 with a module in the trunk that has bluetooth icon on it. The iDrive allows me to connect via bluetooth to use my phone, however, I'm looking for a way to stream music with it. I'm thinking maybe there is any software update that could solve it? https://ibb.co/NWY5Cqc
The MULF doesnít do A2DP streaming, and BMW doesnít do software updates unless the NHTSA tells them they have to. You need a combox retrofit, which is probably not worth it.

The easiest option is to just get a bovee WMA3000B
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      11-11-2019, 02:06 PM   #621
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Question

Hi, first post on here so any help is greatly appreciated, i have an 09 325d e92, i have the steering wheel controls for car play etc however my stock stereo doesn’t have bluetooth and there is no usb under the armrest. I’m wondering if i can swap out the stereo for another BMW Professional oem one (one with bluetooth)?
Also if i can do this, what will i be able to use the steering wheel controls for? my main aim is to be able to change song using the ‘up/down’ buttons (the ones that would usually change the radio station), and to be able to answer calls, i pray this is possible.
Thanks for any help/advice regarding best next steps.
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      11-11-2019, 07:37 PM   #622
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http://www.e90post.com/forums/showthread.php?t=687463

http://www.e90post.com/forums/showthread.php?t=1036190
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      06-29-2020, 04:45 AM   #623
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Can someone maby help me with this question / problem. I have an xtron android unit and the microphone is a joke. So I tried to convert the original bmw microphone 84316938762 to a 3.5mm to connect on the back of the stereo using parts of this guide.

it should work right? The mic just need ground and 12v? Or is it more advanced then a regular 3.5mm microphone?

However when I try a voice recorder program it doesn't even hear my voice. If i hit the mic with the finger i can slightly hear it in the record file later.

I have ordered xtrons mic002 and also kufatec 3.5mm that's fit in the roof but it's to far away. People always complains about poor quality. For now I have done a slightly hole and set up a microphone just over my head to the left.

I'm out of options.. Really thought the original mic would be the best solution.. A shame when the Bluetooth on my unit works great. Just the microphone that's crap. Have removed the xtrons display mic. It was a size of a head of a needle.

I'm looking for a svan neck microphone for now

Last edited by Kudoz84; 06-29-2020 at 04:53 AM..
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      12-07-2020, 12:47 PM   #624
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Angry

Hey guys, so I have a 2010 e90 330d with factory cic 606 Idrive,6fl,620 and 677 pro hifi. Iíve coded the mulf2 hi svs for Bluetooth and all is working fine apart from the mic 😒.. Iíve read endless post and understand in my situation itís normal procedure to repin the mic connection in the drivers footwell with the car being right hand drive of course (spend a day trying find it behind the glovebox lol) my problem is that the connector only has 3 wires in it and seem to be in the right place.. . . . So Iím super confused as to why my mic isnít working any input would be gratefully received. Iíve taken a pic of the mulf2 and of the connection box for the mic. Thanks in advance jb
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      12-07-2020, 03:34 PM   #625
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Quote:
Originally Posted by Kudoz84 View Post
Can someone maby help me with this question / problem. I have an xtron android unit and the microphone is a joke. So I tried to convert the original bmw microphone 84316938762 to a 3.5mm to connect on the back of the stereo using parts of this guide.

it should work right? The mic just need ground and 12v? Or is it more advanced then a regular 3.5mm microphone?

However when I try a voice recorder program it doesn't even hear my voice. If i hit the mic with the finger i can slightly hear it in the record file later.

I have ordered xtrons mic002 and also kufatec 3.5mm that's fit in the roof but it's to far away. People always complains about poor quality. For now I have done a slightly hole and set up a microphone just over my head to the left.

I'm out of options.. Really thought the original mic would be the best solution.. A shame when the Bluetooth on my unit works great. Just the microphone that's crap. Have removed the xtrons display mic. It was a size of a head of a needle.

I'm looking for a svan neck microphone for now

I installed a EONON aftermarket HU and:

1) Cut off the EONON supplied mic from the supplied EONON wiring
2) Spliced the remaining wire (with the 3.5mm connector at the other end) into the existing BMW mic wiring at my TCM. I did not cut the TCM mic inputs (as I wanted to preserve the option to go back). Just 2 wires -- signal and ground.
3) Ran this wire from my TCM back to the mic input of my HU



This seems to work fine. It avoided installing a new microphone.
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      12-14-2020, 10:52 AM   #626
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By TCM do you mean TCU?
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      01-25-2021, 09:38 PM   #627
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Yes -- TCU.
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      02-07-2021, 01:23 AM   #628
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I have a 2007 E91 that I'm looking to upgrade to be Bluetooth capable for calling. I've come across a wrecked 2006 X5 that was equipped for Bluetooth calling - does anyone know if the MULF unit from that car will be compatible with mine?
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      02-07-2021, 10:33 AM   #629
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In 2007 they generally had both a TCU and a Mulf which means two connectors
you should check for that.

You want to get a Mulf 2 Hi as it will give you USB and it's actually the only thing
you need plugged in as it supports the phone all by itself but not SOS which is
useless now as it's unsupported .

Look at part No's on the box they use the same parts in Most Cars where they can.
Same Motor same Stereo etc etc..

http://www.e90post.com/forums/showthread.php?t=1181654

There are many Mulf retrofit thread.
It will more than likely need programming.
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      02-22-2021, 07:58 AM   #630
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Quote:
Originally Posted by ptpending View Post
yes, you can try aftermarket tune2air wma3000
I have been running a tune2air WMA3000 for a couple years (2011 non iDrive). About 50% of the times I use it, after a few minutes the radio screen goes black, and audio stops for ~5 seconds, everything comes back on. This cycle repeats every ~10 seconds. Sometimes completely unplugging the tune2air and plugging it back in resolves the issue for a bit, but it often comes back eventually. Sometimes I can go for a several hour drive without it happening.

It ONLY happens when the tune2air is attached and actively playing. I thought maybe it was putting too much load on the built-in USB port, so I tried to wire it up to get power only from an external source by making a USB cable that splits power and data. The data side goes into the aux USB port, and the power side goes to cig lighter adapter. This significantly decreased how often it happens, but it still happens.

Not sure if I got a bad tune2air unit or if there's something else at play. Anyone have any ideas? Thanks in advance.
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      02-23-2021, 02:38 AM   #631
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Quote:
Originally Posted by mdk View Post
I have been running a tune2air WMA3000 for a couple years (2011 non iDrive). About 50% of the times I use it, after a few minutes the radio screen goes black, and audio stops for ~5 seconds, everything comes back on. This cycle repeats every ~10 seconds. Sometimes completely unplugging the tune2air and plugging it back in resolves the issue for a bit, but it often comes back eventually. Sometimes I can go for a several hour drive without it happening.

It ONLY happens when the tune2air is attached and actively playing. I thought maybe it was putting too much load on the built-in USB port, so I tried to wire it up to get power only from an external source by making a USB cable that splits power and data. The data side goes into the aux USB port, and the power side goes to cig lighter adapter. This significantly decreased how often it happens, but it still happens.

Not sure if I got a bad tune2air unit or if there's something else at play. Anyone have any ideas? Thanks in advance.
i have now e81 with prof radio and i've retrofitted mulf2high and top hifi system and my mulf2high also drops it's functions every time in some time after i try to use it
so i think that i need to upgrade firmware in all MOST ECUs, - MULF2HIGH, TOP HIFI AMP, Radio and may be CD-Changer
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E91 2006. Retrofits:High beam assistant, Individual Audio, Autodim mirrors, CIC, Combox(USB and Bluetooth), Electric Sport Seats, Light package, Front PDC, Heated Steering Wheel, Happy Robot, Climate Comfort Windscreen, Blackline rear lights.
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