306 front fog lights - Dan G
I have a 98R (new shape) 306 base spec without any front fogs. I notice there is a wire behind the plastic blank where the fogs would be on higher spec models, and wonder if you could fit them. I cannot test whether there's any voltage to this wire, I guess if you fit fogs, you will have to change the stalk to one with a front fog switch.

If I buy some fogs and a stalk, will they work ?
306 front fog lights - Altea Ego
Firstly, if you go for the original Pug ones you will be horrified at the cost.
Secondly, they are useless and a waste of time and effort.

But if you persist

1/From your comment above about not being able to test the wires, you will need a mulimeter and the knowledge to use it
2/The fogs and all the fittings will be needed.
3/Wiring diagram will be needed as Pug may also omit the relay, so a relay may be required
4/The switch will need to be changed for one that supports the front fogs.
5/Wiring diagram again, there may be a missing fuse.
306 front fog lights - No Do$h
You may get away without the wiring diagram. Have a look in the handbook in the section on fuses and relays. See what fuse space is allocated to the front fogs and what rating it should be. Now check the appropriate space in your fusebox and if appropriate put a fuse in the empty space.

In the same section you will find reference to the location for the appropriate relay. Track this down and check that there is a relay holder there. If so, you can probably get the appropriate relay from any good autofactor.

Before spending any money, pop your existing switch out and see if the wiring loom includes the appropriate terminals for the fog switch. If not, I wouldn't bother as it will be a pain in the backside tracing new wires through the bulkhead.

As for the lights and the switch, may be worth trying a breakers before you have a coronary at dealer prices.

I have only had to use front foglights due to poor visibility twice in 16 years of driving. The other times I use them is to flash at the numpties that have left them on (when they didn't need them in the first place) or think it makes their car look cool. I've given up on this as the Police don't seem to give a monkeys so why should I?