Location of block heater plug?

I'm wondering where the block heater plug is on a 99 Astrovan? It's freezing outside, and I've lost my patience looking around the engine bay with a flashlight in the dark. Responses are appreciated :)

Look around your battery, it usually cable tied around there or close by.

Mine I believe is orange, with an orange cap on it.
It was still hard to find, but it should be there, around the battery