Hi Richard, I figured out where I went wrong and confirm your findings. So for anyone reading this thread in the future here is an updated list of the VDO Master Connections.
1 = PR 6 -> Fuse Box A - No. 3
2 = B 231 -> Earth
3 = SR 111* -> Spliced with
-> SR 109 -> Engine Connector Pin 14 -> WU 65* -> ECU Pin 89 (CAN HIGH)
-> SR 113 - Diagnostics
-> SR 115 - Body Control Unit A6
-> SR 292 - Immobiliser
4 = UR 110* -> Spliced with
-> UR 108 -> Engine Connector Pin 13 -> W 67* -> ECU Pin 97 (CAN LOW)
-> UR 112 - Diagnostics
-> UR 114 - Body Control Unit A5
-> UR 291 - Immobiliser
5 - 7 = Not Connected
8 = K 129 -> Diagnostics
9 - 15 = Not Connected
16 = KR 130 -> Illumination Potentiometer
17 = WG 53 -> Spliced with
-> WG 47 - Fuse Box A - No.10
-> WG 54 & 55 - Centre and Driver LED panels
-> WG117 - VSS SENSOR - Vehicle Speed Sensor
-> WG 118 - Illumination Potentiometer
-> WG 297 - Seat Belt Buzzer.
18 = Not Connected
19 = NW 132 -> Spliced with
-> NW 116 - VSS Sensor
-> NW 132 - Engine Connector Pin 16 NW 32, -> ECU 86
20 -24 = Not Connected
