What's this part?

[marcusmerritt]

Ford 2000; 3 cyl. gas; 4/1 Trans....At some time in the past a previous owner bored holes in the dash and installed the three gauges shown in the attached pic. The original dashboard gauge was abandoned. I want to sell the tractor so am in the process of replacing the existing three gauges. Can't really see up behind the gauges to get an idea of how to loosen them so my brother took the attached pic of the backs of these gauges. In the middle of that picture is what looks like some kind of instrument (gray with 5 wires attached to it. What is this device??

Thanks.

 

[Destroked 450]

I see 3 gauges and a non factory ignition switch

 

[marcusmerritt]

Ah! yes, of course, the ignition switch. Thanks for the answer to my puzzle.