You asked for it, one
rough schematic:
You have the Blue wiring harness, 3-way rocker switch (later I want to add a constant ON power source: Dome/Off/ON), and the 4 lights. Red is your positive and Black is your ground.
Note: I'm going to have to double check my installation to be sure that drawing is correct. I'm a little confused about the connections to the rocker switch at the moment. I know I reversed them from the package directions.