Hi need some help here, ive swapped my faulty 10 pin i drive controller ( which only has 6 cables being used, 2 of them going to the pdc button) with a 4 pin controller, ive spliced the cables and attached pins to use the 4 pin controller (4 wires) all works well besides the pdc button, as far as i knw the 2 wires from the pdc button go into the idrive controller but dont know why as they have the same setup with other f10s with 4pin i drive controllers and the pdc button setup.
My question is how can i get the pdc button to work, where do i connect the pdc button wires which are now available to bea used from my old controller.

All help will be appreciated.

I also bought a 10 pin i drive controller but it seems to be from a newer model as everything works besides the pdc button. So this is also out of the question

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