Well I've started shifting the fog light parts from the donor car to my good 3G. The most important part is missing (no lights!) but it kinda makes sense to use all the donor's stuff anyway to make it easy when I find the fogs later on.
Here is the wiring I pulled out of the donor car. The one on the left is just a light bulb for the switch. On the left of the main one you can see the small fuse box and two plugs that go in to the loom near the in-cabin fuse box. The two top most plugs, which include piggy-back sockets plug in to the fuse box itself, although I piggy-backed one of them from something that was already plugged in. The right one is the plug for the switch.
Here you can see where most of them plug in, thanks Honda for making this easy
Wiring and fuses in place.
The switch (sorry for the poor quality, it focuses on the stupid floor mat)
The result so far, I have 12 volts at a plug near the battery when the switch is turned on. It also turns on the park lights
Tune in soon for the wiring to the lights and the brackets It was raining today so I couldn't be bothered pulling them out of the donor car.