E85 without CD-Changer harness

E

Evklid

Member
 Beograd
Hi. I'm new to z4, 1 month of owning and have alot of questions

This time I want to add Bluetooth option.

I believe I have read almost every post about bluebus, but I can't find harness to connect it.

Please someone confirm that e85 without harness existed before I disassemble cabin to get to firewall from inside.

This is picture from trunk of my car.

Nothing inside black tape (removed)

Nothing under that plastic. It is very firm, if I bend it more it will damage

And overall not that much wires there to hide something.

Car doesn't have CD changer preparation option 692

Only 648 CD radio

Head unit labeled BMW Business CD



1777833951983.png
 
This photo is from inside the cabin with the centre console removed between the seats. It shows where the wires are taped down:

Screenshot_20260503_204059_Gallery.jpg

If you can find similar wiring on the boot side behind the black taped wiring loom then you'll have cd prep.

I'm not sure all Zed's had cd prep but I know UK Zed's did. Maybe in the rest of Europe they didn't?
 
Thanks for that picture. I saw it before and lost :)

As I understand it - these twisted wires are going to trunk but I didnt find them inside harness

My Zed is from Switzerland (2004)
 
Here's a better photo showing the colours of the wires:

Screenshot_20260503_212218_Gallery.jpg

You could also put your vin number in here:

Free BMW VIN Decoder : ///M Decoder

BMW VIN decoder will check your BMW VIN and show you full vehicle specification
www.mdecoder.com

It will list the options of your car and should list cd changer prep like this:

Screenshot_20260503_212634_Gallery.jpg
 
I beleive you can get a bluebus that connects directly into the back of the head unit.

Edit: I am thinking of bluemusic not bluebus. You can get a bluemusic that connects to the back of the head unit.
 
Thanks
Seems that is the easiest way.
Is amazon good place to buy it?
Read that not all of options being listed there are of good quality.
Priced around €48
 
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