There have also been some suggestions that the relay could be related to the air-conditioning system, but the AC is on the passenger side of the truck and this relay is on the driver side of the truck, here's a shot of my AC connections on the passenger side:
Attachment 3644
Here is the other gizmo that I was talking about. It's just laying there on my drivers inner fender doing nothing. Seems to be attached to some sort of cable perhaps.
Attachment 3645
Attachment 3646
As far as the relay goes, I do not see anything laying around nearby that looks like it should be attached to it...