I have one in my Ranger, I had one in my 88 BII and one in my choptop, but currently I don't have an antenna on the Ranger, or on the 88, and on the choptop I have an antenna but the CB is in the basement.... One of these days I'll get it all back together.
In my Ranger, I have a double DIN opening for the radio, so I just put a single DIN CD player in and mounted a slim CB above it. In my 88 I had fitted a small CB into the ashtray slot. My choptop... I haven't figured out a good place yet... previous owner had it mounted above the rear-view mirror, but that makes it about impossible to check what channel your on, or at least with the CB he had mounted there.
They're not hard to install, usually the hardest part is getting them tuned properly. You really shouldn't have to tune one, but it will give you better range. Tuning them requires an SWR meter.