To add to Teemo’s reply if there is no connector in the multiway socket to the distribution board then you need a special insert which you connect(crimp) to a cable before you insert it. We had this problem and I had difficulty getting the actual pin (well actually it’s a socket) and ended up having to buy 100! If you a couple let me know and I can send for the postage price.
The membership association for owners of Dufour Yachts