Maybe somebody on here can answer these questions for me?

What is the orange/signal wires for on the output of the bec and is it needed?

I know you pull off the power wire coming from the esc to the receiver when using a bec. But can you pull the black wires out also? What I am figuring is just cut the red and black wires coming from the esc and solder on the red and black from the bec and just use the 1 connector from the servo to clean up the wiring. Like this:



Or if the black wires has to stay could I just splice the black on from the bec in line to its like this: I circled where im talking about.



Which way would work? Dont want to burn anything up but I want to keep it simple and clean.