Removing throttle cable from throttle tube?

[Inhouse Bob]

Hi gang,
I am trying to reroute the throttle cables and I think I need to remove the throttle cable ends from the throttle tube. I have it all apart but need some slack in the cable to get those little barrel ends from their holders. Is that possible without going to the throttle body and screwing around on that end? I've tried yelling at it. Didn't help. Thoughts?
Thanks!
Bob

Edit... and how do I get this damned throttle/switch black box thing back together?? It just won't snap back into place. What the heck??