I understand that current is electrons, but that theory or answer doesn't seem to be correct, as it would seem that if it were true, then all of the readings would have the negative sign in front of them, and in my 16-ish years of working on vehicles, I've never seen it.
As far as what happened, I couldn't tell you, they worked fine, then I changed the gas tank (only touched one wire, the one for the sending unit) and the next time I turned on the lights, this problem popped up. I've checked all the wires that I can see for cracks/shorts/missing insulation, and they all appear to be in good shape. No blown fuses, nothing.
I don't mean to sound disrespectful, I appreciate the reply, but it just doesn't make sense to me. I checked grounds, they seem to be fine, so what I plan for tomorrow is to run a ground wire from the battery and use my meter on all the wires in the circuit, starting at the fuse block, and out until I have a loss of current, or negative reading again.
Any other ideas are always appreciated
Thanks again,
Tony