Traxxas Jato BL Conversion

[NHDesign]

Thanks Mike, I received the engine & battery's all in one piece!

I just have a few questions now about the set up.

Since I am keeping the 2 speed and mechanical brake, i believe the wires from the brake join up with those from the engine to the esc? How does the esc know when to apply the mechanical brake?

On the battery there are the two wires that run to the esc, but there are also some smaller thinner wires with a white connector, what are they for? A fan? or something totally different?