I remember back in the 70's Allied / Radio Shack used to make a CB with a "public service" tuner. You could get it in a high band or low band model. CB back then was 23 channels only. I'm sure it's not what you're looking for, but just thought I would mention it!
Many years ago,(the 70's) there was a company called "Handic" they came out with some bright orange cb's that if I remember correctly were swedish made.
At any rate, these were both handhelds and mobile units and one of the mobiles had a tuner of some sort in it. It was either a vhf or fm tuner (88-108mhz.)
They were kind of odd,but cool, like me of course!
I wish there was such a creature! My Cobra 29 lx is a great cb radio with modern features and the ability to scan the cb channels and the weather channels, but no dice on the VHF HI / UHF stuff you are probably thinking of. That's why I carry my PSR-800 with me.
What type Jeep? Assuming you have a JK, I believe a full product line is available, now. You could install a center console from which has a DIN mount, and install the scanner in there. Then you just have to worry about where to mount the CB and external scanner speaker.
They also make an overhead rack, which installed between the factory roll bar and the windshield, and fits the CJ, YJ and TJ, and is available with upto two DIN mounts. These mounts include a grille opening, for the built-in speaker. I don't know if it is available for the JK.
Check these vendors:
the Uniden BCT15/396/996 scanners have a CB search feature, and the Midland 75-822 handheld CB has a channel scan feature (which was why I bought it).
There's one problem, however, and that is some of the CB users operate illegal rigs with tons of power on channel 6. It effectively negates the CB scan/search features because every time the receiver cycles through the channels it stops on channel 6 when the "cowboys" are transmitting, which is practically around the clock...especially if you upgrade your antenna to one tuned to the CB frequencies. Worse yet, these guys talk gibberish, there is no factual information on channel 6 that is of any use to anyone on the road (or even people listening at home for that matter).
The Uniden models can lock out channel 6, but as far as I can tell the Midland CB cannot when it is in scan mode. If the Midland unit could lock out channel 6, or if there was such a thing as an after-market channel 6 attenuator, I would be super-happy with the radio and recommend to everyone, especially if they were interested in the channel scanning feature. Without such things, I cannot in good conscience recommend it if CB channel scanning is what they want. Sure, it has the ability to do so, but as long as the cowboys on channel 6 are doing what they are doing, the scanning feature of the Midland 75-822 is worthless. As previously stated, Uniden's receivers can lock the channel out, but you have no way of transmitting like you do with the Midland unit.