is it possible to code the AUX to headunit while keeping the 6FL?

LittleBlackHawk · 08-16-2021, 11:38 PM

Hi, my car is 2009 and has CIC with MULF basic, it has hands free system and only AUX with no USB under the armrest. The AUX is wired from the head unit.

I previously added an Android 10 screen system and had the combox retrofitted by a shop for Bluetooth streaming purposes. So he didn't really rewire the AUX to the combox, which was fine until I tried to retrofit the 6FL on my 2009 model.

The Android has the audio signal that goes to the AUX-IN at the head unit's quad lock connector, and everything works great until 6FL comes in.

The problem is that once I coded the 6FL VO, the AUX signal is set to the combox which is not wired there. Once i remove 6FL, AUX goes back to head unit but then the USB doesn't work.

Is there any way to code the AUX signal to the head unit? I tried all the possible parameters I could find on the internet, but with no success yet.

Or alternatively, code the USB under the armrest to work without coding the 6FL VO while keeping the AUX at the head unit.

Thanks for the help~~

aohus · 08-19-2021, 10:12 PM

CDMM_AUX_HU -> aktiv
CDMM_USB_AUDIO -> nicht_aktiv
CDMM_USB_AUDIO_DOUBLE -> nicht_aktiv

LittleBlackHawk · 08-20-2021, 06:36 AM

Quote:

Originally Posted by aohus

CDMM_AUX_HU -> aktiv
CDMM_USB_AUDIO -> nicht_aktiv
CDMM_USB_AUDIO_DOUBLE -> nicht_aktiv

Thank you, tried this, AUX is working but USB is gone.

F31B48 · 08-22-2021, 01:55 PM

Quote:

Originally Posted by LittleBlackHawk

Thank you, tried this, AUX is working but USB is gone.

Little confused, do you have combox or mulf? If you mulf you have to modify the wiring, probably the same for combox as well. The AUX needs to be wired into the MULF. I had the same issue when doing my MULF2 high retrofit.

Edit, just checked wiring diagrams and confirmed aux is wired into mulf and/or combox, whatever is fitted to your car, so you will need to rewire it if you want it to work.

earlster · 11-07-2021, 12:45 PM

I just installed an AVIN unit in my e93 with a mulf-hi. The armrest Aux wasn't working, due to a break in the ground connection from the mulf to the aux port.
This helped me to re-code the aux to use the head unit aux.
Thanks!!

08-16-2021, 11:38 PM	#1
LittleBlackHawk Private First Class 35 Rep 101 Posts Drives: F30 --> E89 Join Date: Jun 2015 Location: Asia iTrader: (0)	is it possible to code the AUX to headunit while keeping the 6FL? Hi, my car is 2009 and has CIC with MULF basic, it has hands free system and only AUX with no USB under the armrest. The AUX is wired from the head unit. I previously added an Android 10 screen system and had the combox retrofitted by a shop for Bluetooth streaming purposes. So he didn't really rewire the AUX to the combox, which was fine until I tried to retrofit the 6FL on my 2009 model. The Android has the audio signal that goes to the AUX-IN at the head unit's quad lock connector, and everything works great until 6FL comes in. The problem is that once I coded the 6FL VO, the AUX signal is set to the combox which is not wired there. Once i remove 6FL, AUX goes back to head unit but then the USB doesn't work. Is there any way to code the AUX signal to the head unit? I tried all the possible parameters I could find on the internet, but with no success yet. Or alternatively, code the USB under the armrest to work without coding the 6FL VO while keeping the AUX at the head unit. Thanks for the help~~
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08-19-2021, 10:12 PM	#2
aohus First Lieutenant 163 Rep 376 Posts Drives: 2010 Monaco Blue 335i Join Date: Dec 2009 Location: Northern California iTrader: (0)	CDMM_AUX_HU -> aktiv CDMM_USB_AUDIO -> nicht_aktiv CDMM_USB_AUDIO_DOUBLE -> nicht_aktiv __________________ 2010 E92 Monaco Blue 335i / Gray Dakota Leather / Steptronic / Sport / Premium / Navi / L7 / 18" Performance Wheels / HPFP fail @ 8400 miles (replaced with #933 pump) // MODS: Mishimoto OCC \| VRSF CP + Turbosmart Dual Port BOV \| RB PCV Valve // Maintenance: Walnut Blast @ 56k \| Spark Plugs Replaced @ 56k \| Addons: BN2000 Combox // Andream Carplay // Rear Camera // Spark Plugs (.022 gap) and Coils Replaced 73.1k 2019 G01 Carbon Black X3 M40i / Premium / Driver Assist / 21" on Bridgestone Alienza RFT
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11-07-2021, 12:45 PM	#5
earlster New Member 3 Rep 29 Posts Drives: BMW 328ix E91, BMW 335is Vert Join Date: Aug 2021 Location: Colorado iTrader: (0)	I just installed an AVIN unit in my e93 with a mulf-hi. The armrest Aux wasn't working, due to a break in the ground connection from the mulf to the aux port. This helped me to re-code the aux to use the head unit aux. Thanks!!
	Appreciate 0 Quote