Can't find thread about adding 10' of wire on full gauge conversion

[haysonj]

I was looking for this in the electrical section awhile back and didn't have a lot of luck. What I found is the stock ammeter uses the heavy wire as a shunt (whatever that is) to make it read correctly. My gage would always read discharge unless you turn on some acc. Everyone told me to replace the ammeter with a volt gage. I know its not much help but that's all I could find