Wires on regulator in order:

Brown Key off: 0 volts Key on: Bat +

Red Key off: Bat + Key on: Bat +

Purple Key off: 5.2 v Key on: 5.2 v

Green Key off: 0 v Key on: 0 v

Measurements with alt. connector plugged in. Measurements with regulator connector U... Login to read more.