1999 Honda CRV, alarm

no relay needed

take the ign wire cut it in half now you have two wires a key side and a coil side butt connect or soilder immobiliser circuit no 2 (the alarm wires should be labled key side .....coil side. the key side is the wire that goes to the key , remember you just cut the wire)

starter is the same thing might be called key side .... motor side

the fuel pump same concept except the wire might be towards the rear of the car  sorry im not fimilar with that vehical   i cant spell either lol

The ignition loom is the group of wires that runs generally from the key cylinder down the steering wheel to the iginition switch. Look up under your steering column for the wires you need.

For the immobiliser circuits you don't need to connect all 3 of them unless you are extremely worried about your car being stolen. Most people just do the starter kill. This link shows you diagrams for those. https://www.the12volt.com/relays/page2.asp

Your manual should explain how to connect those systems. Unless you have an onboard relay then you usually do need one. If your book says something to the effect of 200ma - output then you need to use a relay. Good luck. Keep us updated