RE: CB with controls in microphone
Google 'Cobra 75' and you will find what you are looking for.  I have one in
my Westy, been there for about nine years now, works fine.  BUT, I added an
external speaker (under $40 at Radio Shack) and mounted a good antenna on
the outside of the van.  The microphone/speaker provides mediocre sound and
I found it very difficult to use when the van was on the highway.  And the
gutter mount antenna I used for a year or two didn't work very well at all.