fly sky fs-t6

Okay, this transmitter is amazing, it's on my work table, but let me take and share a photo of the box photo & my dad & I are wondering about this red wire on the receiver and loop connector as well. Does something need attached or is it a power wire connector where you crimp it together? then...

Hello, I'm trying to build my first quad and I'm running into issues getting the receiver to communicate to the Flip 1.5 FC. I have the FC connected to my computer and running the MWC v2.3. I can see all of the telemetry data coming back, roll, pitch, yaw, but none of my radio controls show...