Stop in for a cup of coffee

I got a new starter relay and it is different from the one on the car now. It is missing a blade, where this blue wire is connected and then connected on the wheel well. Do I not need this on the new one? Thanks

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343633335_260413303016975_3485858812697945225_n.jpgThe top one is battery , middle one is sol The one on bottom left is I for ignition and the one on bottom right is g for ground . I would think you need the ground .Hope it helps !