Hi Mari I found a topic where this was discussed and thought it may help-
Renault tend to use to same wiring looms on most Clio's so hopefully your car will have the wiring there already but pay attention to the last post about the stalk with the switch. Also the part that controls the fog lights may not be programed for them though if you plug a relay into it you would find out.
By the way i'm not an old fart but would like to say driving about with your foglights on during anything other than foggy weather is not cool and lots and lots of people will despise you for it
That said if you are local to me i'm always willing to help out any female members