I did it both ways, exactly as the diagram, then I rewired it like mine (I have an extra relay n the trunk an my fuel pump runs off straight battery) still buzzed.
No matter though, badime rewired it according to the diagram and got it going.
Okay, so I wired up relays using this.
But as soon as it gets 12v the relay that comes off of the grey connector just buzzes.
Anyone know what might be the problem?