Don’t have any dash, dome or tail lights when headlights are on?

So the first thing I’ll do is check each fuse in the fuse panel under the dash. I’ll put a test light in each connection to make sure it lights up. I know that may not guarantee that the fuse box isn’t shorting or corroded but it’s a start. Then I took pics of all the grounds on my car. Fire wall to engine block, steering column support bracket to dash frame. Also the thick hot lead to the back of my alternator. In the pic you will also see a green wire that runs of the main lead from the firewall junction. That plugs into a male tab in the back of the alternator. The problem is that I don’t know where to find the ground for the alternator to check it it’s up to snuff? Is that green wire lead the ground?

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