mx5 wiring bits question

[johnl63]

OK so Im plugging away at the wiring and following some good diagrams bit I have found a few things that I am not sure of what they are ......

I know its not in a haynes but I did start one! the chassis is on my shed wall!!
first the rats nest, I have tracked and labeled everything in blue and then marked the keepers in red (things that I can reattach to the motor)

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but what are these
1, the heavy blue wire coming from the fuse box? its a single spade connection


2,the small yellow connector that is with the coil connections


3,this thing, its a bit of an orphan