WIRING A RELAY???

i just ordered all my air ride equipment, and i have a question on how to wire up the relay. i have a 98 accord, and i wanna know how to wire this thing up..

from what i understand one wire goes to the pressure switch; one to the compressor; one to the battery; and one ground....is this rite?

also when wiring the pressure switch, one wire goes to the relay, and the other goes to the igniton? can the ignition wire go just into my fuse box??? will that be the same thing?? if not, where do i wire it to?

thanks fellas