Dash Power wire?????

The ammeter or amps gauge measurers amp draw on the system. But they didn't want all the amperage going through the gauge so the factory ran a smaller wire to it from the starter relay to show if your system was charging or discharging. You can either do away with the amps gauge and run power from a protected source(40amp circuit breaker) or use the gauge and take your dash power from one of the terminals on the amps gauge. The red wire that someone installed directly to the battery was installed incorerctly and could have burned the whole car up. If you decide to bypass the ammeter on your dash and run a new power wire make suer you use a heavy circuit breaker at the source.