Electrical issues

I'm slowly chipping away at the electrical issues. I now have brake lights and reverse lights and thanks to RustyRatRod I know my fuel gauge works it must be a sending unit issue. Now the only thing that don't work is wipers and signal lights I have flashers but only to the rear. Nothing up front

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Heck yeah man! Progress!! Can you get a pitcher of how you have that sender grounded please?