I bought a generic Rectifier/Regulator from baja Designs and am currently wiring it. The BD R/R has 5 wires vs. the stock 4 wires. I know that the 2 yellows go the Yellow and white wires from the stator, the Red goes to red. What is left over is a blue an black. Ordinarily the Black would go to black but the side of the R/R says blue to battery (negative) and black to load (along with the red which also goes o battery). The question is which do I hook up and can I run other items off of the left over wire. Baja Designs online instructions/schematics only mention 4 wires like the stock unit.