S2KI Honda S2000 Forums - Tapping into Fuse Box, need guidance

Hi, I am tapping into one of the spare ignition signal outputs on the interior fuse box (in the drivers-side foot well) to provide a startup signal to a gauge. I see the fuse box has three spare outputs for this type of thing, but I'm not sure what is the best way to tap into these outputs. The output terminal is a blade so I'm currently using a slightly pried apart female blade type connector, but that seems a bit unstable and frankly doesn't look great.

I was wondering if there's a certain type of connector that's meant to be used with this style of output? The housing on all three outputs are the same shape--squarish rectangles--and the terminal blade is like right in the center.

Any help is appreciated. Thanks.