First off, you're going to need some spare wire to run from the ignition to the relay. At the relay use some 'female spade terminal connectors' to plug into the relay. You'll need the crimping tool that is used on the connectors if you don't have one. I see you have a Princess Auto in Hamilton. Get some assorted colors in 18 gauge in 25 feet rolls to try and best correspond with what you're running to.
This is how I splice into an existing wire such as an ignition or power:
I use an X-Acto knife to carefully peel away the wire coating all around (on the ignition wire). Using the tip of the knife just separate the strands a little. Then take your wire, insert it through the middle and give it a couple twists around. Then solder it. I use electrical tape to cover my splice. It's more professional to use heat shrink, but I'm not quite there yet. (Maybe my next installs.)
Here's the connectors:
These and the crimping tool are also available at Princess Auto. Don't be afraid to bring a couple parts in there and ask employees questions, and explain what you're needing it for.
Now this is a lifesaver: It's called a wire stripper. It's for the end of wires, one squeeze and it cuts and pulls off the wire cover. It's listed as $3.49 at Princess Auto.
So it looks like you'll need to splice 'into' the ignition wire, use some 18gauge yellow wire you've now bought, and run some wire (maybe a couple feet) to the '86' spot on that relay. As you get more experience (and trust me after you nail this, the feeling of accomplishment is addicting), you'll probably be able to visualize where you're going to tuck some of these relays away, so leave yourself enough wiring that gives you some options. It's easier to tuck the wiring away then try and make too short a wiring work in a tight spot. Oh, and buy yourself some zip ties to get the impending mess of wires wrapped up after.
It looks like you'll need 5 relays total if you're also connecting to the trunk release. The picture I attached of the relays shows 3 together. Again, I haven't used many relays in my life, but mounting them together may be a good idea, and then just run wiring to them from the alarm, then whatever wires out of the relay to their destinations.