500sel Euro Headlamp Problem 1984

[500selproud]

I have h4 euros on my 500sel 1984 and the city lights are all hooked up and i have the vacuum plug on both lamps. I also have the factory switch that goes in the dash to raise and lower them. Where do i hook the switch up for vacuum and how do i run the hoses to get them to raise up and down? Thanks any help would be greatly appreciated. It is my first s class. 111K