I sent you two pics of how a real bottle mount should look. I make them and sell them. You should not put the FPSS in line with the window switch, it should be hooked in line with the N2O solenoid so thzt no mater what happens, if you don't have fuel pressure, the nitrous won't come on. But to answer your question yes the yelow wire is hot,through the window switch to ground through the black wire.
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