what ones the switch wire?

i got the positive on starter that has leads from battery to starter.

then theres another little push on rubber plug like the coil wires have that goes on to another thread which i have seen on some rs's with a little 8-10mm nut on? is that the switch wire?


car was running perfect week ago, parked it up and now this out of the blue, so am well stumped to say the least