I am having a very strange problem with the power wire running from my battery. It has been installed in the car for a few weeks although I haven't had an amp in there lately. I went to test it today and had this problem:
I tested the wire for voltage between it and the ground and it reads around 12 volts. However, I tried to rub it against the ground (Bad idea I know) but there are no sparks!!
So my assumption is that there is not a lot of current able to pass???
I can't make sense of it, if there is a voltage then clearly everything is connected. There is no resistance across the fuse on the wire.
If anyone can help please let me know.
I should add that this has of course worked just fine in the past, usually there's so much juice pumping that it will practically solder itself together if the power and ground touch.