Bluetooth retrofit w/o pre-wiring

neilvan · 07-20-2020, 08:44 AM

My brother has a 09 328 sedan; After buying we realized that BMW removed all the pre-wiring for LCI's as a way to cost cut; so this has made it difficult for us as bluetooth calling is very handy for him.

He is looking for factory bluetooth(no aftermarket) and his car does have factory 6FL so it has the USB and MULF in the trunk as well as Satillate radio

I have the bluetooth antenna+coax cable that I can mount and run the cable to the MULF. Mic, I also have but I have to figure out the wiring; Does anyone know where the MIC runs to? Is it just the overhead module right back to the MULF/TCU? or does it split off anywhere/what route does it take?

Beyond those 2, is there any other wiring I would need to make this work? I have access to car part-outs so I can grab the wiring if its reasonable feasible

ctuna · 07-20-2020, 11:20 AM

https://www.newtis.info/tisv2/a/en/

https://www.e90post.com/forums/showthread.php?t=85149

You will need to search the above thread and do searches for a 6fl
retrofit to track down the wirings physical locations.

neilvan · 07-20-2020, 11:54 AM

That second one is a great link/ thanks! Looking thru i, Some 128 guys managed to get it to work. Run the antenna to the MULF, Strip the mic wiring and run that to the MULF, Then code it all in(Hopefully K+Dcan can do the Mulf for BT)

The Mic wiring seems to cross over to the passenger side, go into a connection behind the glove box and then up the A pillar to the overhead module. Time to have some fun and pull that wiring from the donor.

07-20-2020, 08:44 AM	#1
neilvan Major 858 Rep 1,363 Posts Drives: 09 E90 335i M-Sport 6MT RWD Join Date: Nov 2017 Location: Ontario, Canada iTrader: (0) Garage List 2007 BMW E61 530xi [0.00] 1993 Mazda Miata [0.00] 2009 BMW E90 335i [0.00]	Bluetooth retrofit w/o pre-wiring My brother has a 09 328 sedan; After buying we realized that BMW removed all the pre-wiring for LCI's as a way to cost cut; so this has made it difficult for us as bluetooth calling is very handy for him. He is looking for factory bluetooth(no aftermarket) and his car does have factory 6FL so it has the USB and MULF in the trunk as well as Satillate radio I have the bluetooth antenna+coax cable that I can mount and run the cable to the MULF. Mic, I also have but I have to figure out the wiring; Does anyone know where the MIC runs to? Is it just the overhead module right back to the MULF/TCU? or does it split off anywhere/what route does it take? Beyond those 2, is there any other wiring I would need to make this work? I have access to car part-outs so I can grab the wiring if its reasonable feasible
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07-20-2020, 11:20 AM	#2
ctuna Lieutenant General 1911 Rep 13,103 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	https://www.newtis.info/tisv2/a/en/ https://www.e90post.com/forums/showthread.php?t=85149 You will need to search the above thread and do searches for a 6fl retrofit to track down the wirings physical locations.
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07-20-2020, 11:54 AM	#3
neilvan Major 858 Rep 1,363 Posts Drives: 09 E90 335i M-Sport 6MT RWD Join Date: Nov 2017 Location: Ontario, Canada iTrader: (0) Garage List 2007 BMW E61 530xi [0.00] 1993 Mazda Miata [0.00] 2009 BMW E90 335i [0.00]	That second one is a great link/ thanks! Looking thru i, Some 128 guys managed to get it to work. Run the antenna to the MULF, Strip the mic wiring and run that to the MULF, Then code it all in(Hopefully K+Dcan can do the Mulf for BT) The Mic wiring seems to cross over to the passenger side, go into a connection behind the glove box and then up the A pillar to the overhead module. Time to have some fun and pull that wiring from the donor.
	Appreciate 0 Quote