So I just finished my first ever build. Really happy with the end result. Until I plugged it in. It's just a horrible loud buzzing noise. I'm new to this and only soldered 3 wires. I used my father-in-laws old soldering iron and some solder that said it was for radios. Said "electronics" on the box. Could this have anything to do with it? Here are pics of my wiring. The ground is soldered to the back of the Floyd Rose claw in the back. I filled all of the cavities with copper tape. I don't know what's going on. Any suggestions?

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