Where to find RSSI?

Hope I got the correct category. First post. When using the Cube, an X8R, and a Taranis, how and where do I turn on the quadcopters battery voltage so I can see it on the ground? Where do I find it on the Taranis during flight? No, I haven’t plugged anything into the “RSSI” port on the copter but am using the sbus port connected to RC In.

Your answer is below. You’ll need to roll up your sleeves a bit.