[Xpoppyxx]

I'm hoping someone can answer.

I'm in the process of changing the stereo system on my 2011 320D (e90). I've managed to get everything out ready for the eonon unit to go in but I'm confused about which connection is what. On the rear of the old Pro cd player are 4 coloured connections.
White
Black
Green
Yellow.

Can anyone confirm what each one of these is for so I can connect them to the appropriate wiring on the loom I have. I'm getting confused with so many different articles out there and no real understanding as to what these actually are.

Thanks in advance

[ctuna]

Is that the Radio ? CD73 which happens to have a single cd slot?

[Xpoppyxx]

Originally Posted by ctuna

Is that the Radio ? CD73 which happens to have a single cd slot?

The photo is of the single din professional cd player that I have removed from the center console. I have checked my cars manual and I just can't seem to find anything anywhere that specifies what each one is for? I have a feeling the black port might have something to do with the DAB/antenna. But again this is a guess.

[ctuna]

What the front look like ?

To find out what you pulled from your car
run . Mdecoder.com

If it came from the dash either the cd73 radio with single cd slot or
and idrive controller is the only thing I am aware of that goes in the dash.

https://www.e90post.com/forums/showt...ight=head+unit

[opjose]

Yup that is an upside down picture of the EU spec Professional Head Unit with DAB connectors for the powered antennas and AUX.

the white is AUX phono, the black is the radio antenna and the green and brown is for dab/tv.

[Xpoppyxx]

Originally Posted by opjose

Yup that is an upside down picture of the EU spec Professional Head Unit with DAB connectors for the powered antennas and AUX.

the white is AUX phono, the black is the radio antenna and the green and brown is for dab/tv.

This is the problem, everywhere I look someone says something different as to what they are.

On another thread at another site I had read:
White is usb connecting
Black is FM aerial
Green is DAB L band aerial (not used in the UK)
Yellow/brown is DAB band 3 aerial

And then on other documentation they talk about them being other things entirely. Makes no sense to me that I just can't find any documentation from the manufacturer. People are just left to guess! Most frustrating.

[ctuna]

If that came out of BMW then there is part number on the side of the item.

[opjose]

I think you may be misreading things.

There are two types of white connectors. One is used for phono and another for USB.

However the phono plug is larger with a plastic surround ring as per your photo. Notice it has multiple pins but the antenna connectors do not. Check the ECUtuning site. They have a phono cable for the white connector connector you have.

The green and brown are indeed for Dab/tv but are not used on many radios hence the not used posts. Your radio uses them.

You can also find all of this if you carefully look through the BMW audio system training documents. The same can be found there under the Antenna connector sections.