Figuring out my CB install

if its like mine it on the front, your owners manual will tell you more, its those sliding switches, say like SW, Cal. and something else if you post a close pic of your radio i can tell you where it is

 

Late response:

So I ended up grounding it at that ground on the frame in the fender well. DTacoms helped me out and that guy knows his stuff. He figured out with his voltmeter that it needed to be grouded under the tab.

I just need a tuneable antenna now and Im set.

Thanks for all the posts and help.