None of my gauges work

I could really use some help with this one!! I have a 05 Chevy Trail Blazer 4WD 4.2L none of the gauges are working on it and no lights come on when I first turn the key, I checked all of the fuses and none of them were blown so I figured it was the instrument cluster itself so I went to the junkyard and tried to replace it with one from the same year I couldn’t find the same exact cluster but I found one from the same year make and model of car that didn’t work. I’m wondering if it’s my cluster or if it’s my wiring going to the tester please help?

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Let's hope Landdchamp chimes in.
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Gee, thanks. No pressure!

LOL, Robert. You said the same thing that I would have.

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My apology.

Thanks for the confirmation. I'm more into electronics than cars but over the years having to deal with both family and business fleet you pick up some knowledge along the way.

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