HELP! Charging/Wiring Problem

How did you bypass the Amp Gauge? My Gauge has a busted post in the dash and I was having a no charging issue and I ended up running a wire from the battery lead on the alternator directly to the positive battery post. Bingo!!! No more charging issues. I am getting 13.5 Volts at the battery with the car running. I also replaced my Alternator, Battery and Voltage Regulator and Ballast.