Rewiring CD Changer E39 touring - BMW Forum

victorc75 · 02-04-2008, 03:27 AM

Hi all,
I am a new member of this forum and I'm happy to guide a 520d Touring E39 (not many PHs, but a wonderful car as well).

I bought a BMW CD Changer on ebay with the related brackets. I have a Business BMW radio cassette.
I know that my car is NOT prewired for CD Changer

.

Does anyone have any instruction/handbook/indications/link to correctly rewire my car from CD Changer box in the rear up to the radio?

I tried to find them in some posts, but I didn't get nothing. In the posts most cars are prewired.

Thanks very much!!!

da_bull · 02-04-2008, 04:53 AM

That's kind of suprising that its not prewired, I'm not sure I've run across one that isnt. Anyways, I am pretty sure they are plug and play. You will have to have the cd changer cable that goes from the radio to the rear. It should be the only DIN plug behind the radio left open.

to werkz BTW...

victorc75 · 02-04-2008, 08:19 AM

Thanks for your answer.
Unfortunately I confirm my car is not pre-wired ("Eletta" italian version). Neither there are cables connected behind the radio, nor there are cables behind in the cd-changer box.

Of course, it would be very usefull to have instructions about how to pass cables under the carpet (and so on) from the rear box up to the radio.

Thanks!!!

da_bull · 02-04-2008, 07:41 PM

The toughest part will be getting from the radio to the passenger side kickpanel. I suggest the passenger side becasue the glovebox can be removed fairly easy. basically the passenger side, pull the sill plates in the door jambs from front to rear. just tuck the cable under the carpet, making sure to clear any place where a screw might go in. I am assuming the radio is cd changer compatible. If it is, the cord will just plug in, plug in the other end into the change and the radio should recognize it with the CD button.

Dirty_Tool · 02-05-2008, 12:13 AM

So you have no Navi and no DSP sound?
Can you post last 7 digits of your VIN # please so i can see all options. If so I will try to assist.
thanks

victorc75 · 02-05-2008, 02:52 AM

I have neither Navi nor DSP. Simply BMW Business Radio cassette.
This evening I'll check che VID#.
Thanks.

Here the picture of my radio.

Dirty_Tool · 02-06-2008, 02:19 AM

on CD changer you will have 3 connections.
A) 3-pin connector requires 12v+, i-bus signal, ground
B) DSp coaxial connector (only used with DSP)
C) 6-pin audio connector- carries individual speaker wire inputs

you will need to run all these wires from radio in front of car to the back of the car where you are installing the CD-Changer.

As far as the connector housings.. it may easiest to go to a salvage yard and get them... finding part #s in BMW's Parts catalog for connectors is miserable.
As far as wiring diagrams and pinouts try this site or the Bentley manual....

BaSo.no - Baardsen Software

amaru_shakur · 02-26-2008, 02:55 AM

I have e39 528, 1996, with casette business radio RDS (no DSP), there is no wiring to the back of trunk, so i need cable from radio + connector for power supply?
power supply cable also needs to be wired from radio??? I thought that i will plug it at the back. Can someone give detailed info, please