Hello everyone!
Several combination instrument panels have an extra connector on the back for potential adjustments (3-pin?). I've searched the forum extensively, but unfortunately, I haven't found anything. Can anyone provide a description of the wiring configuration for this adapter cable?
I apologize if I have missed any posts on this topic, but I have really been searching

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Thank you very much, Peter.
VW T5 GP Multivan Startline CAAC 2,0 CRD 103 KW, Audi A2 1,4 16V AUA 2001, Audi A2 1,4 16V AUA 2003;Renault Zoe PHII 135 2020;