Right-now, I just have a temporary setup, I plug the CB in the lighter plug, put the CB on the floor somewhere and put the magnetic antenna on the roof through a door opening. The weather stripping has enough sponge to take the cable without crushing it, but I don't how tight the weather stripping would be around the CB antenna cable for a long term installation.

Not a big fan of drilling a hole in the body to let the CB antenna cable out. If I was to drill a hole for the CB antenna cable, might as well drill holes for a permanent mount.

I guess I still have some thinking to do.