Part 1: Headunit.
So I began my ICE install. I wanted to fit the CD43 and also the DICE mediabride MB1500. This little device supports iPods/iPhones, USB and Bluetooth audio.
I didn't want to get a BMW labeled CD43 as they are twice the price of the Rover version, so I simply used a gentle 1500 grit sandpaper to remove the paint on the Rover logo.
I think the previous owner of this radio lived entirely on drive through burgers, because the buttons were so greased up that they were getting stuck down, and the M button was completely seized.
I stripped down the radio by removing the top and bottom metal covers and gently unclipped the for clips holding the faceplate. Then on the underside of the display I used a nail to lift the lock and unplug the ribbon connector.
I dismantled the faceplate
Remove the buttons with a jeweler's screwdriver or a pick.
and cleaned the grease from the buttons. The << M >> button is extremely fragile when you get it apart.
After gently sanding the face for what seemed like forever, the paint came off.
The Rover logo is actually embossed in the plastic, and with the harsh flash of the camera, it still can be seen.
In natural light the whole area looks more uniform.
After reassembly
---------------------------------------------------------------------------------------------------
On to the DICE mediabridge.
I bought two of these back from the USA when I was there last. The other one is now sold.
First I removed the CD changer from the car and put it in the spare room. I now have my boot [trunk] space back!
I didn't want to have to faff around trying to solder to the factory loom hanging out of the dash so I got a SOT-060 from eBay, and I had some loose cut wires from an E46 CD changer harness. You can buy a short CDC harness from BMW also, the part number is 65128364756, $38
I got the cut CDC lead and added some pins from farnell, PN 1330227
I got permanent live, iBus and GND from the SOT-060. You will need the little blue fork to hold the 10 pin connector in the 17 pin connector, BMW PN 61131390431
This is the DICE kit
A quick test
And after wrapping with fabric tape the loom is done
Pairing with BT
eas | DICE Electronics MediaBridge Demo e46 M3 - YouTube
It'll be a while before I install this as I need to build a cradle for the phone and test out how the nav audio will work when I am using the system.
I will probably use the Google Navigation in the phone and it may conflict with the A2DP support in the Mediabridge.
Next out to the car, remove the old radio by unscrewing the hex bolts. Do not remove them, just undo until it comes lose.
Here are the locks you are unscrewing.
Lift the radio latch until it releases, removed the antenna connector and withdraw the old radio.
Running the new cable for the CD changer through to the glovebox area.
And tuck the new harness in. There is not a lot of space back there, so I made sure the new cable would not get in the way of sliding back the radio by tucking it down and behind.
Quick functional test, check all four speakers are working, wiggle the harness to check for bad connections.
And slide back, tighten the allen screws.
I needed a custom harness because the DICE hooks up to E46/E39 post 2001 CDC connections - that is a 3 pin power/GND/Ibus and a 6 pin square audio. Mine was an early boot changer version - I believe they do a radio version of the Mediabridge now that as you say plugs directly into the back of the headunit. I could also have bought the 0.5m audio cable from BMW for nav equipped E46's, and just tapped the power, GND and iBus.
The cable is a little too long - the 5M coiled audio cable picks up noise from the power cable. I am tempted to see how much they want for the radio cable.
I velcro'd my unit under the sunglasses tray, accessing the upgrade cable just requires popping of the shift boot.
The Mic is fitted to the steering wheel cowl. It just peeks over the ///M3 wheel, it's a little more visible with the sport wheel.
.
Ther is a problem at the moment though. The DICE goes to sleep after about 30 minutes, like any iBus device should when in an E49/E39/X5. However it doesn't wake back up again, unless you unplug the power and replug it.
I assume the E36 iBus is so limited that the message the DICE is looking for about "time to wake up" (GLO->LOC: IGN ON or similar) never gets sent.
There is however a sutable iBus message from the radio that could be substituted. (RAD-> GLO: Device ready after reset or similar)
I sent a support request to DICE on Monday but have heard nothing (famous DICE support!). I'd not recommend this unit to E36 owners until this bug is fixed.
Others also having problems with MB-1500 and E36 here. EDIT: Latest firmware now fixes the power on issue.


So I began my ICE install. I wanted to fit the CD43 and also the DICE mediabride MB1500. This little device supports iPods/iPhones, USB and Bluetooth audio.
I didn't want to get a BMW labeled CD43 as they are twice the price of the Rover version, so I simply used a gentle 1500 grit sandpaper to remove the paint on the Rover logo.
I think the previous owner of this radio lived entirely on drive through burgers, because the buttons were so greased up that they were getting stuck down, and the M button was completely seized.
I stripped down the radio by removing the top and bottom metal covers and gently unclipped the for clips holding the faceplate. Then on the underside of the display I used a nail to lift the lock and unplug the ribbon connector.


I dismantled the faceplate



Remove the buttons with a jeweler's screwdriver or a pick.


and cleaned the grease from the buttons. The << M >> button is extremely fragile when you get it apart.


After gently sanding the face for what seemed like forever, the paint came off.
The Rover logo is actually embossed in the plastic, and with the harsh flash of the camera, it still can be seen.
In natural light the whole area looks more uniform.

After reassembly

---------------------------------------------------------------------------------------------------
On to the DICE mediabridge.
I bought two of these back from the USA when I was there last. The other one is now sold.
First I removed the CD changer from the car and put it in the spare room. I now have my boot [trunk] space back!
I didn't want to have to faff around trying to solder to the factory loom hanging out of the dash so I got a SOT-060 from eBay, and I had some loose cut wires from an E46 CD changer harness. You can buy a short CDC harness from BMW also, the part number is 65128364756, $38
I got the cut CDC lead and added some pins from farnell, PN 1330227

I got permanent live, iBus and GND from the SOT-060. You will need the little blue fork to hold the 10 pin connector in the 17 pin connector, BMW PN 61131390431

This is the DICE kit




A quick test

And after wrapping with fabric tape the loom is done

Pairing with BT


eas | DICE Electronics MediaBridge Demo e46 M3 - YouTube
It'll be a while before I install this as I need to build a cradle for the phone and test out how the nav audio will work when I am using the system.
I will probably use the Google Navigation in the phone and it may conflict with the A2DP support in the Mediabridge.
Next out to the car, remove the old radio by unscrewing the hex bolts. Do not remove them, just undo until it comes lose.

Here are the locks you are unscrewing.

Lift the radio latch until it releases, removed the antenna connector and withdraw the old radio.

Running the new cable for the CD changer through to the glovebox area.

And tuck the new harness in. There is not a lot of space back there, so I made sure the new cable would not get in the way of sliding back the radio by tucking it down and behind.

Quick functional test, check all four speakers are working, wiggle the harness to check for bad connections.

And slide back, tighten the allen screws.

I needed a custom harness because the DICE hooks up to E46/E39 post 2001 CDC connections - that is a 3 pin power/GND/Ibus and a 6 pin square audio. Mine was an early boot changer version - I believe they do a radio version of the Mediabridge now that as you say plugs directly into the back of the headunit. I could also have bought the 0.5m audio cable from BMW for nav equipped E46's, and just tapped the power, GND and iBus.
The cable is a little too long - the 5M coiled audio cable picks up noise from the power cable. I am tempted to see how much they want for the radio cable.
I velcro'd my unit under the sunglasses tray, accessing the upgrade cable just requires popping of the shift boot.


The Mic is fitted to the steering wheel cowl. It just peeks over the ///M3 wheel, it's a little more visible with the sport wheel.




.
Ther is a problem at the moment though. The DICE goes to sleep after about 30 minutes, like any iBus device should when in an E49/E39/X5. However it doesn't wake back up again, unless you unplug the power and replug it.
I assume the E36 iBus is so limited that the message the DICE is looking for about "time to wake up" (GLO->LOC: IGN ON or similar) never gets sent.
There is however a sutable iBus message from the radio that could be substituted. (RAD-> GLO: Device ready after reset or similar)
I sent a support request to DICE on Monday but have heard nothing (famous DICE support!). I'd not recommend this unit to E36 owners until this bug is fixed.
Others also having problems with MB-1500 and E36 here. EDIT: Latest firmware now fixes the power on issue.