Originally Posted by wstar

Welcome, lurker

The reason you don't need an extra switch is because you're in Canada, and you already have a foglamp switch on the switch stalk on your steering wheel. In the US that switch is absent (as is the rear fog lamp itself), although the BCM wiring and the harness all the way to the bumper are present.

I think a PIC is overkill for a simple flash, but it would probably be the better option if you want lots of customization, as you said.