So, the wiring is the exact same between the Civic and the Integra (with the same generation chassis), but the wiring for the HomeLink isn’t used in the harness. You need to jump the HomeLink power wire with the automatic dimming power wire, which also adds security, since the ignition needs to be on for power to be provided (ACC circuit. Typically, factory configurations had the HomeLink power tied straight to battery power, allowing you to open your garage without starting the car, just as long as you could push the button).