This is my first guitar build and I don't have much prior experience with wiring and following wiring diagrams so I'm a little clueless.

In the diagram that is dedicated to my specific bass kit the diagram shows what looks like an extra wire on the neck pickup. Is this right or is the 'earth wire' the part without the plastic around it and 'Hot Wire' the part with the white plastic?

Click image for larger version. 

Name:	diagram.JPG 
Views:	400 
Size:	134.8 KB 
ID:	32193

Click image for larger version. 

Name:	wire.JPG 
Views:	393 
Size:	679.9 KB 
ID:	32194

Here's a link to the actual diagram for improved quality:
https://www.pitbullguitars.com/wp-co...f/PBG-YB-4.pdf




On top of this In was curious as to how i would go about grounding a wire to the bridge like it says in the diagram.



Cheers