DJ, you'll need to have a harness made up for that EVIC... I think I got a connector here I can throw in the box for you, so you can fabricate a harness worst case.
The connector is on the BCM for the EVIC. Remove the side panel on the drivers side dash and you'll see it staring at you. Wires run up drivers side A-pillar.
The factory harness is a bitch to extract. As the wires are glued to the fiberglass and feed all across the entire headliner for all the courtesy lights, moonroof, visors, pending on options. It's do-able, but a bitch.
I found it easier originally to just get the connector, cut the current wires for the courtesy lights, patch them into the new connector, and then use some new wire to run lengths to the EVIC. Did the trick. But I ended up scrapping my harness to feed power to new 300M visors, etc, now it's just a larger mess...lol!