I do (even though my blue wire is actually a Green Wire). Regulator has a dedicated Ground Wire running directly to the battery (as do the lights on the truck, and the aftermarket ignition, and the wiper motor, etc) I have a 0 Gauge Ground Cable connecting the Battery to the Engine & Battery to Frame. and 2 Gauge cables connecting Engine to Body and Body to Battery. Most of the wiring is extremely overkill on this truck.
