If you look you will find loads of apparently orphan cable connectors. They are for features your car does not have. Just ignore them.
By the way some glove boxes have USB sockets, so that may be for that on another model.
Geoff
The following 1 user says Thank You to Guanock for this post:1 user says Thank You to Guanock for this post • Pitkin2020
It's a canbus cable, probably for an accessory as said or the tracker unit etc - the red and white twisted pair are the canbus Comms cables. Must be for a Citroen accessory.
______________________
Current:
Not a Citroen!
______________________
Previous:
2017 B9 1.6 BlueHDi Van
2012 B9 1.6 HDi Van
2008 M59 1.6 HDi Van
2003 M59 1.9D Van