dash lights issue

I'm confused as to where you have power connected. I have 2 sets of 3 gauges in 2 cars hooked to the male spade that would be directly behind the instrument fuse in you fuse box. It's a piggyback orginal connector behind the instrument fuse. I have never had a problem. My tach light is also in this line, so 4 lights. No inline fuse either, that's the instrument fuses job.