Walker,
On my CB, there is a wire to a constant hot source so that when you turn the cb on it remebers the last channel that you were on. But to answer your question, yes the red/lt. blue under the seat is more than suficient to run a CB. Mine only had a inline 2 amp fuse. If you don't have power seats you will need to get a 20amp circuit breaker to go in the #21 space in the fuse panel. I didn't need my cb to be on a constant hot source.
HTH
Tom