X5 e53 DSP Wiring Diagram

[x5e53]

I am trying to figure out which wires go to what on the DSP amp.
There are 3 connectors in total.

I believe the larger connector is what goes to the speakers, so any tapping into wires to power speakers from a aftermarket amplifier will need to be done with the wires in this connector.

Can someone share a wiring diagram of the DSP amp, showing which wires go where and what each of the 3 connectors do?

Mines a Facelift 2004 model, 4.8, with widescreen satnav and subwoofer.

[x5e53]

Actually I Found the following from a 2000 DSP:

The pinouts for the 15 pin connector are:
PIN - CONNECTION
1- Sub 1 +
2- Sub 2 +
3- LH Rear loudspeaker + (Touring LH rear speaker ground)
4- Radio on/antenna signal
5- RH rear loudspeaker + (Touring RH rear +)
6- Sub 4 -
7- Sub 3 -
8- Terminal 30 connects to Fuse 56
9- Sub 1 -
10- Sub 2 -
11- Touring LH rear +
12- Touring RH rear -
13- Sub 4 +
14- Sub 3 +
15- Terminal 31 connects to Ground Point

The pinouts for the 18 pin connector are:
PIN - CONNECTION
1- Not used
2- Low freq. negative (-) signal - Transceiver/charging electronics
3- Not used
4- Not used
5- I-bus Signal Line - Splice X18344
6- Not used
7- Not used
8- RH front speaker - Connects to Radio
9- LH front speaker - Connects to Radio
10-Not used
11 Low freq. voltage (+) signal - Transceiver/charging electronics
12-Not used
13-Telephone mute signal - Transceiver/charging electronics
14-Not used
15-Telephone ON signal - Transceiver/charging electronics
16-Not used
17-RH front speaker + - Connects to Radio
18-LH front speaker + - Connects to Radio

The pinouts for the 26 pin connector are:
PIN - CONNECTION
1- LH front woofer +
2- LH front woofer -
3- Not used
4- RH front mid-range -
5- LH front mid-range +
6- Not used
7- Not used
8- Not used
9- RH front mid-range +
10-LH front mid-range -
11-Right rear mid-range speaker/tweeter +
12-RH front tweeter +
13-RH front woofer +
14-LH front tweeter +
15 LH front tweeter -
16-Left rear mid-range speaker/tweeter -
17-Not used
18-Not used
19-Left rear mid-range speaker/tweeter +
20-Not used
21-Not used
22-Not used
23-Not used
24-Right rear mid-range speaker/tweeter -
25-RH front tweeter -
26 RH front woofer -

I have 2 questions.

Q1
The ones highlighted in Bold are the ones I need to tap into?
Essentially, if I am looking at the car from the back, I need the following:

Front Left (Passenger):
Tweeter - 14, 15
Mid (in Dash) - 5, 10
Sub - 1, 2

Front Right (Drivers):
Tweeter - 12, 25
Mid (in Dash) - 4, 9
Sub - 13, 26

Rear Left (Passenger):
Tweeter/Mid - 16, 19

Rear Right (Drivers):
Tweeter/Mid - 11, 24

From a post from Sanj, he states the number of speakers are:
2 in the rear door cards = 4
2 in the front door cards = 4 (up higher near the outside mirrors)
2 in the dash up high (base of the windscreen)


Q2:
My rear doors have 2 speakers, one larger on at the bottom (maybe Sub), and a smaller one a bit further up (Maybe Mid).
But the Connector explanation above does not have this second speaker.
Maybe the above is incorrect?