Stereo & Electronics - Need a Pigtail for foglight switch

I want to use a spare foglight switch as a switch for my amp.
What are my options for how to wire the amp to this switch, is a spare pigtail absolutely needed or is there another way.

Where can I buy a spare pigtail.

The OEM part number is 12125632 but I have no idea if it is still available from dealers. You may have to check salvage yards.

Thanks again whitebird.

We were talking about this few weeks ago but this project was sidetracked.

This is available on gmparts direct & eBay, for anyone else that may need it in future.