Thanks for the help. A responder to my post at The12Volt forum suggested I use resistance to find ground. Low resistance between the - at a true ground and the + on a pin indicates that it's ground.

So, I should be set. Thanks for the help.
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FireFox31
110gig MKIIa (30+80), Eutronix lights, 32 meg stacked RAM, Filener orange gel lens, Greenlights Lit Buttons green set