Aftermarket / Additional Foglights

[banpei]

It depends how you wish to set them up. If you want to have them operate independently from your normal high beam/low beam you need to draw an extra line from the dash.

84hachi recently posted a video about his installment, including the partnumber of the Landcruiser switch he used for it:

The switch itself his oriented horizontally, so perfect for usage in the AE86 dash panel next to the door.
The partnumber for the switch is 84160-90K01

He got a general purpose relay+loom for ensure it is switched independently. You could get the same item from Amazon, but I'm sure it is much cheaper to get one from your local automotive partsstore.