Steve,
Your driving lights (fog lights) are wired through the switch, and they work for Canadian driving lights. I never turn them off(switch low on dash to left of steering wheel), because they come on with the ignition, and go off when the ignition is turned off.
You will probably be OK with the Trac Vision dome in southern Canada, but since the antenna dish is so small, you will probably have a weak signal problem if you travel very far north of the US border.
Gerald