The Honda accessory Fog light kit includes everything you need, including a new turn-signal/light combo switch that includes the fog light switch.

The car is pre-wired for fog lights, all that has to be added is a front harness for the lights, and the switch harness from the relay panel to the switch in the steering column.

I would rate it as about a 4 for difficulty to install. One has to remove the front bumper cover, and cut out 2 holes in the cover for the lights, as well as take the steering column cover off to install the new switch.

The instructions are very clear, and if you are handy with a screwdriver and an X-acto knife, it will be a breeze. The Honda kit can be had for about $245 on the web.

Here is a link to the install instructions for a coupe, which will give you an idea of the complexity. The main difference is that the coupe uses a dash switch, while the sedan uses a stalk switch