You may wind up paying more for the manual than the radio.
Are you just trying to program it or something more?
Chances are if you have specific questions one of the many knowledgable posters to these forums can assist.
I have one too, and there really isn't a manual, it's more like a folded up road map sort of affair.
If you just grab the little telescoping antenna and pull straight out it will slide right out. It has a "car antenna" sort of plug in for other antennas.