installing relays with the EZ wiring harness

I'm trying to figure out how to properly install a relay with this harness for my lights and ignition for now. For the headlights, there is a single wire that says headlight power, so where would the relay go? \

also for the ignition do i need to have the ignition power and ignition start go to my push button start while the ignition switch wire, ignition switch acc, and the ignition switch coil go to a relay?

Any clarification would be great.