what does the cable do

slm 307 there is an idle cable in the fuse box inside the hood does anyone know what works. There are the same ones standing idle under the front two seats.https: //www.dosya.tc/server31/tvx05n/Image_2020-10-18_at_16.38.49.jpeg.html

Hello teacher, it is possible to see this type of idle socket in most of the psa group vehicles. It is installed in required places according to version and hardware and other sockets are left idle. The sockets under the seat are probably for seat heating.

thank you