this method allows you to turn on the fogs with parking lights. however if you wish to add your own switch you will have overall control of the lights.
take a relay and wire it like so.
85 - ground
86 - RED/BLACK @ light switch (+)
87 - constant 12v fused at 20 - 25 amps
30 - to relay 2 terminal 87a
wire that above, and this will allow the fogs to come on during your high beam. For example the wiring above allows the fogs to come on only when you turn the light switch one click. what i show you below allows for example if its during the day and you dont turn on the parking lights, you high beam the fogs will still light up.
85 - constant 12v
86 - negative trigger from high beam harness @ bulb
87 - constant 12v fused @ 20 - 25amps
30 - to fog lights positive input
as a pro installer of car electronics, i would wire it like that. not what you mentioned above. Also, from terminal 30 of relay 2, you can wire in a toggle switch to override tehe system if you dont want the fogs on at all. hope that helps,
cheers and have a happy new year to all at HAN