1997 Peugeot 406 fog light relay

[PC2CV]

I got a pair of front fog lights and a stalk for my phase 1 406, a bit nicer than looking at blanking panels

Fog lights and stalk are in place, the stalk even lights up the instrument cluster warning light for front fogs but no lights from the fog lights themselves yet. I think i need a relay

Ive tried to follow PSA wiring diagrams but im not sure where relay 2665 goes, it seems to be in a box called BT10 but i cant get a definition from it on servicebox, and the overall diagram for it isnt 100% clear (im not actually sure if it does distinct diagrams for LHD and RHD.

has anyone ever fitted fog lights to an early 406?

[xantia_v6]

I can't give a definitive answer, but Xantias of the same age have a small relay box hidden behind the upper rear part of the front wing (drivers side), accessed by removing the plastic arch liner.