Installing New 2020 Rockshox Reverb C1 Dropper Post

I bought a brand new Rockshox Reverb C1 dropper post off of ebay and it came in the wrapper with the hydraulic cable housing already connected to the lever. My problem now is how do I route the cable housing through the frame on my carbon frame? The port on the frame is formed to route the cable housing. My problem is that I can’t figure out how to remove the new 2020 flat barb is on the end of the hose. That needs to be remove in order to put the hose through the frame. I tried to unscrew the barbs at both ends but they won’t budge. I can’t imagine that a brand new product would involve hacking up the cable housing and cutting the barbs out.