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[worzelof10acrefield]

I know this sounds odd but i am trying to repair my Bose system but i am getting some conflicting info.

I can get a replacement unit (CCR2006) but it comes from a Vectra which i didn't think had a Bose system so that would make it a 4 Ohm system.
As we know it does not state on the radio which impedance it is.

I can also get a aftermarket unit that states it replaces the CCR2006.
Now the Question

Does the radio unit go into another unit , Say a Bose unit to change it to the 2 Ohm system.

Cannot find any wiring info to confirm this.
And will all CCR2006 units be the same.

Might sound daft but don't want to change it and it doesn't work..

Thanks for any help

[Doctor Gollum]

What's the problem that you're trying to fix?

[Andy H]

A basic CCR2006 drives 4 ohm speakers directly. (no separate amplifier)

A BOSE capable CCR2006 can be configured either for full output for 4 ohm speakers OR for a reduced level output to feed a BOSE amplifier. The BOSE amplifier feeds 2 ohm speakers.

Not all CCR2006 can be configured for the reduced level output to feed a BOSE amplifier. If you try driving the BOSE amp with the normal output you will find that instead of your volume control going from quiet to very loud it goes from loud to POP.

[worzelof10acrefield]

I have got the cd changer locking and saying no cd when finding cd4
and the drivers door speaker is shot. so looking for another one, but this seems to be near impossible


I did notice on the back of the CCR2006 you have the standard power plug and a speaker plug but also have another one with 20 pins inside.
Wondered if that was to a seperate Bose unit aswell as the heads display.
Thanks

[worzelof10acrefield]

Right
So it sounds like this goes into a Bose amp
Which i believe is on the offside side panel in the estate boot.

[worzelof10acrefield]

I have noticed some CCR2006 for sale but haw do i know it is the Bose type

Is it the number on the top that states it is a 09 146 058 as i have seen a 7  in stead of a 8 ones. is that the difference

Thanks

[Marks DTM Calib]

So to answer your question, the speakers in a Bose setup are 2 ohms as this gives the system the ability to drive more RMS power from a standard vehicle supply without the use of a DC-DC converter.

The head unit in a Bose setup does not drive the speakers, it drives a Bose amplifier which is the boot area which in turn drives the speakers.

IF you have multichanger issues then its not particularly hard to swap the changer assembly for a known good one from an NCDC, 2006 or a CDC3

[worzelof10acrefield]

Right.
Thought it was something like that.

So i have seen other people trying to put an aftermarket unit in these cars and having volume issues.
if the head unit is pretty much a standard type unit powering a Bose system, is the 2006 much less powerful as modern days units are so this does not overpower the Bose amp like a modern unit would.

Thanks

[Marks DTM Calib]

The Bose version of the 2006 has a configuration setting which, in simple terms, winds down the amp output so as to not overdrive the Bose amp.

Pinouts are the same for both units by the way.

[worzelof10acrefield]

Right
sounds about right.

Thanks for your great help.
Will purchase another unit and swap changer over.

BTW any ideas on the speaker. just cannot find a 6.5" 2 Ohm for the door.
Might have to look overseas.

Thanks again

[Marks DTM Calib]

Might be able to get one on here from a breaker, post a wanted add in the test area and I will move it to the For Sale section.

[worzelof10acrefield]

Have done now

Thanks

[worzelof10acrefield]

I ended up stripping the speaker down as i could not get one for less than £100.
Found the back had rusted off the magnet and moved slightly.
All cleaned up and stuck back on in the centre with silicone sealant and built back up and now works perfectly.

Also changed the CD unit with old radio and now got a system that sounds like new again.
Thanks for all the help.

Jay