Last week my 93 CC gas cart kept going dead. I checked the voltage at the battery at half throttle and was 12.3 volts. Battery is 7 mon. old and starter gen is 1 year old. I decided to try replacing the voltage reg and found that my original reg had 3 wires and my new one has 4. One red, one yellow, two black. One of the black wires has a ring connector, the other a slide on "spade?" female connector. Which black wire do I use? Do I need the other one for anything? Thanks.