need help finding a wire

Something must be wrong with my ignition cause the brown wire goes dead during cranking. I tried the relay there seems to be a small dead spot when going from key on to crank when the relay switches over. I wanted to do a key fab anyway guess now is the time.
Yeah we've seen a few threads about a misfire or even a backfire caused by the dead spot in transition from crank circuit to run circuit. I have no idea how they cured it. A separate toggle from a hot at all times like lighter/horn circuit to power ignition would be the simplest fix but you would need to remember turn it on/off. Goof luck with it.