RNS-D coding (especially for Bose)

[HPsauce]

OK, I've got the coding table, here's a sort of interpretation:

Radio soft code is 5 digits, all are binary values from 0 to 7.
The three options within each field are valued at 1, 2 or 4 (for on) and are added to give the value. Standard binary stuff.

First digit = 0
Second digit = 0 for A8 or Bose (Sound curve, uses other values for other models without Bose, e.g. A6-C5 is 2)
3rd digit = FaderOff(1), BoseDisplay(2), ActiveAmpPhoneDeactivate(4)
4th digit = Navigation(1), Telephone(2), VCS(4)
5th digit = DiversityBox(1), CDchanger(2), MFSW(4)

Not sure that makes sense of my 00117 and 00207 codes though.

[Adrian E]

Be aware that USA coding seems to be nowhere near the same as Europe. I found coding values quoted for our A6 that were completely off the wall compared to what it should be!

I read the code off the A6 stereo to know what to change it for, but when I got in to the soft code entering page it came up with a guided list of each number to enter which tallied with what I had from the old one

[notorious]

HP, what ELSA suggests?

[Adrian E]

Good point - forgot it was in there! Attached....

[HPsauce]

Now that makes much more sense.
The coding I have is in your document as MY02 onwards.
The "up to MY 01" seems to make total sense on all the kit I have, even though my car is a D2 made in 2002 (registered 2003!).

00117 is pretty standard Bose. 00207 is standard non-Bose with powered rear speakers. 00507 would be for unpowered rear speakers.

Given my rear speakers are so useless I wonder if they are powered or not - will have a look tomorrow if it's not raining.
I have the fader set heavily to the rear to compensate.
(I had the covers off when fitting the ski hatch but didn't inspect the wiring )

Edit: Thinking about it, the rear speakers were working when coded for Bose, so that suggests that they are indeed powered. Odd they're so quiet though.

[HPsauce]

Originally Posted by mannyo

Coding: 00017

That's for a Bose system without telephone.

[HPsauce]

Originally Posted by HPsauce

Given my rear speakers are so useless I wonder if they are powered or not

Would it be too much of a risk to change the coding to unpowered? Obviously I'd change the fader to minimise the rear first.
What sort of voltages are used in each case - anyone know?

[notorious]

I think if you code RNS-D 'non-BOSE' you won't hear anything since in BOSE config RNS-D send L and R signal to BOSE amp via line-out pins and doesn't use normal directly connected speaker pins. If your car had BOSE from day one your speaker pins are not connected. The sound goes from RNS-D pre-amp via line-out pins to BOSE amp in your boot.

[HPsauce]

Well yes, but non-Bose mostly still use amplifiers for the rear speakers. Which is why it's an option in the coding tables for RNS-D.
The amplified speakers have extra wires as the amps are in the housing under the parcel shelf. And according to one source I read they then feed the rear door speakers.

The FACT that I had sound from my rear speakers (door & shelf, but not front door) with Bose coded in the RNS supports that.
Which connections are used from the RNS I don't know, but it would make sense for the fronts to use the powered connections and rears to use the lineout ones in that "mixed" configuration.

0 = No passive loudspeakers (Bose sound system)
1 = 1 passive loudspeaker (front left) (Bose with telephone)
2 = 2 passive loudspeakers (front) and 2 active loudspeakers (rear)
5 = 2 passive loudspeakers (front) and no active loudspeakers (rear)

[notorious]

Was your car manufactured as BOSE car?