Hi together, I already felt the whole Internet searched, but I always find different schematics, mostly to 5 pole seat heating switches from BMW. I need a schematic or the assignment of the pins from the switch 1371998: https://www.bmw-all-parts.com/…1311381209-1371998-6-series-e24-77-89 Would be great if someone could help me there, because I try the started seat heating retrofit (no original BMW mats, no original BMW cables, but just original BMW Thank you for your help! Best regards, Daniel