Guys, I believe you did not understand how my system works at the moment.
When the switch is in mode 1, all of my lights are off if my engine is off. My headlights turn on automatically when I start my car in this mode, so I don't have to touch the switch. I want the exact same thing to happen after the mod too, but the difference would be that my foggies would light up instead of headlights.
In mode 2 my headlights turn off and only my parkers are on. If my foggy switch is ON, my foglights do turn on as soon as I choose this mode. I want the exact the same thing to happen, but so that my foggies would turn off and I could activate my headlights if I wanted to.
In mode 3 my headlights are on, my interior lightning on, and my foggies are on (if the other switch is in ON). I want my foggies and interior lightning to be on in this mode, and the headlights aswell if I'll have the other switch in ON position.
Hope you get me now. I think it's a great idea as I will be able to save automatic light function, use my foggies only in mode 1, use my headlights in mode 2 with other switch in ON position and have them both on when I select mode 3. I could keep the other switch permanently in ON position 24/7 and all I'd have to do is use the other switch to control everything!
I suspect that my local car parts seller doesn't know how to do that I can always ask though...