Amp gauge not working now

Remember, amp gauges need to have all the current pass through it (in series) not just some of it. When you did the bypass the current goes through it and not through the gauge.
My '69 has a Amp bypass, but the gauge is still hooked up, funny thing, when it is charging, the gauge shows discharging...the current is flowing thru the gauge in reverse..I have learned to live with it. All the wiring is solid, so it is staying that way.