You will need to create your own or buy existing (on the market) wiring for front fogs. Below is the wiring diagram which is actually the same for all models. I included few variants which you could use or not.
In case of MG F mk1 MG F mk2 and MG TF mk1 it is expected that you mount in-line fuse on the wiring.
In case of MG TF you can use existing place for fuse which you can see from installation guide.