Elictrical problem? Is this normal?

Hello everyone/anyone,
I’m in need of help.
I have a '71 camaro and I came across a dilemma.

Is it normal for me to get a negative current reading from the fuse block with the ignition off

I mean I'm getting 12V with the voltmeter connecting the red lead to the + side of the battery itself and the Black lead to the fuses on the fuse block.

I'm not blowing fuses and when I turn the igniton on they become positive but I think this is rather odd since I believe that fuses being that they are positive current should be completely isolated from ground even with the ignition off.

Could someone maybe try this on their camaro?
Please help
__________________
Jose

What do you mean by negative current?

Do you mean reverse polarity. Like your ground is conducting positive current?

What do you mean by negative current?

Do you mean reverse polarity. Like your ground is conducting positive current?


yes That is exactly what I mean.

When the ignition is off
The fuses flip from positive to negative