Opel-Antenna-Kabel – Connection plug vehicle and radio-sided unclear

Hello together, in the Vivro-Camper of our daughter I had changed the old radio some time ago for a new one. For the new Pioneer I bought the corresponding antenna connection for Opel Vivaro and wanted to connect it then. Somehow, however, something has been torn down and now it doesn’t fit any more! Unfortunately, I didn’t have time for it anymore – and now I have absolutely no idea how I can get on here!!??? ;-( As can be seen on the pictures, the Opel antenna cable has a white socket (is the still OK?) and the antenna cable of the radio a turquoise socket. But both don’t fit together. No matter how much I try to Google, I don’t find any information about what kind of socket it is Opel-side, so that I can get the corresponding counterpart for the Pioneer radio. Does anyone have an idea about it here? For help I would be very, very grateful …. LG Airjaw PS: I wasn’t quite far away from the friendly one.