How Radio reads the AUX input

cband · 01-02-2017, 03:35 PM

How does the radio acquire the 3.5mm AUX analog feed?

I know the jack is in center console, is it just a another wire from the port to the back of the radio?

I ask this questions because I removed my combox and completed the fiber loop with a dummy fiber terminator. My radio always says AUX as a selection choice but I get no audio.

All I want to do is listen to my music with an AUX input cable... Can I just run a 3.5 mm wire from back of radio to my console? or does 2011 cars require a combox for AUX? I wouldn't think AUX cares about MOST loop

cband · 01-04-2017, 12:37 AM

Answer is MULF/TCU... I need my combox to have working AUX input. The AUX port takes in 3.5mm audio signal, sends it to the trunk and in the trunk is converts to fiber for the radio to play. This is on my 2011 328xi

ptpending · 01-26-2017, 03:47 AM

you can recode HU and connect AUX directly to HU

01-02-2017, 03:35 PM	#1
cband Private 3 Rep 76 Posts Drives: 330xi (2006) Join Date: Jan 2014 Location: Northen USA iTrader: (0)	How Radio reads the AUX input How does the radio acquire the 3.5mm AUX analog feed? I know the jack is in center console, is it just a another wire from the port to the back of the radio? I ask this questions because I removed my combox and completed the fiber loop with a dummy fiber terminator. My radio always says AUX as a selection choice but I get no audio. All I want to do is listen to my music with an AUX input cable... Can I just run a 3.5 mm wire from back of radio to my console? or does 2011 cars require a combox for AUX? I wouldn't think AUX cares about MOST loop
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01-04-2017, 12:37 AM	#2
cband Private 3 Rep 76 Posts Drives: 330xi (2006) Join Date: Jan 2014 Location: Northen USA iTrader: (0)	Answer is MULF/TCU... I need my combox to have working AUX input. The AUX port takes in 3.5mm audio signal, sends it to the trunk and in the trunk is converts to fiber for the radio to play. This is on my 2011 328xi
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01-26-2017, 03:47 AM	#3
ptpending Colonel 456 Rep 2,749 Posts Drives: e91 Join Date: Dec 2013 Location: Poland iTrader: (1)	you can recode HU and connect AUX directly to HU __________________ E81 2007 130i 6cylinder Montego blue Retrofits: Harman Kardon, High-beam assistant, Removable tow hitch. Auto-dim folding exterior mirrors. Lumbar support. Perfomance Brakes.
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