Interested in this as well - just picked up a new Uniden radio and trying to decide how best to hook it up. I have a Wilson magnet mount (Little Will) that I was thinking about putting on the roof - however that ends up hitting the garage door.
Fire sticks are great antennas - used them when I drove commercially years ago, but could never figure out how to rig one up on the pickup truck bed without doing something invasive.
CB is a Midland 75-822 so no permanent mount, I just stick it next to the passenger seat when in use but store it in the center bin when not. I have the wired base in the center console connected to direct 12V.
I didn't realize how popular the center console was...that's where mine is stashed as well. Nothing fancy, literally just something to get me by for now. The mic is threaded though a hole with a grommet on it and hung next to me along with an external speaker so I can hear it. Basic rear bumper/tailgate attachment on the Firestik.
I have an ICOM IC-2730A mounted under the driver's seat. The face plate is separate and is mounted with a 3D printed bracket just in front of the shifter. The antenna is on a bracket with an NMO mount that I made that clamps onto the front of the bed and floats above the tonneau cover. This isn't an ideal place for an antenna, but it is out of the way, doesn't hit the garage door, doesn't interfere with the tonneau cover, and gives good enough coverage. The install is here.
My little cb is also mounted in center console. I can hear it ok with lid closed so haven’t added extra speaker yet.
Got a firestik II with a mirror mount kit. Used half the mirror mount to make a mount to drill into bed rail. Ran coax from cb, under carpet to door sill, out cabin vent, zip tied to frame all the way back. Came up the left tail light. Drilled thru the bumpout behind tail light.
Installed mount above bumpout at end of utilitrak. Cut away bed cap, ground off paint, mounted Marriot mount to bed rail. Mounted antenna, taped it off and used spray can bedliner to cover mount and bare metal. Been there for over a year, looks good and sound and transmit is good even here in the mountains.