I need help with my roof rack installation : overlanding

I cannot find the crossbar measurements for my car.

My car: 2015 Kia Soul

My rack brand: Rhino Rack Vortex 2500 series

Any help? I’m at the end of my rope.

Thanks!

This video at 1:25: https://youtu.be/YszDu8SgjUs

I am confused bc:

1. I don’t have enough length of the “top” rubber buffer strips to cover the full length of both bars. It didn’t come w enough.

2. I am simply not understanding at 1:35 what they’re telling me to do. There