Siemens C1 & C2 connector pin numbers

[Paulioliolio]

Hi
Does anyone have a diagram showing the pin numbers of the C1 and C2 connectors on the Siemens VDO BCM module please?
The only diagram I can find shows the pinouts for C3 - C6, but ignores the first two.
I'm trying to fit an aftermarket alarm, and the instructions say which pins to connect to, but doesn't show the numbering sequence.
The BCM part number is 8c1t-14a073.

Many thanks.

[Paulioliolio]

Hi all.
Please ignore this question.
I'd delete it but can't see any way to do so.
I'll have another look later when I'm not squinting at a little phone screen