Help - 2013 z1 dies. Radio works. Won't start

[Z1Fan]

not saying anyone is right or wrong, just how the diag is drawn. Maybe the key switch B+ is a separate wire that runs from batt-1 to the switch, just not shown in that diag. In models past, no start with a dead house battery.

No blame to anyone , everybody's here to help anybody if we can , but
That diagram only shows main wires , not the "other" wires , I am trying to trace that ignition wire , not exactly sure where it goes , possibly back to the starter , and here's a kicker when I pull the 10 amp fuse off the engine , she still turns over , not sure if she will fire ,but she Turns over , which is odd , but I will find it , I promise I will !!.

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