Next if included, get the cable that came with your CB and connect it to your braided cable. I ran my cable from the battery under the radiator support. Then I tucked it under the the airbox and the hood rails. I went through the main grommet on the drivers side. I looped it under the dash so it would not interfere with steering or pedals. Next I would recommend dropping the cb power cable down from the dash. It is easier to do this vs trying to pull i up from under the dash.
Now that you have the wires in place, you can connect them. I used simple Butt connectors.
Next wrap them in electric tape or heat shrink.
I recommend taping them together after you have protected each individual butt connector to keep them from getting caught under the dash.
Now pull your wire tight and seal the grommet under the dash. Make sure to not let the CB power cable fall down in the dash. I made that mistake and it is so hard to fish it back out.
Not go around to the battery and connect your O wire connectors to the end of your braid at the battery. Make sure to double crimp these in case they become loose. Once you have connected both of them, make your connections to the battery. Once you have connected them around, walk back around to the cab and test your CB. Plug it in and make sure it comes on at full power. If your CB functions correctly, let's continue.
Next is one of the harder parts of the install. Take your tray and mark your mount locations of your CB mount on the tray. Once you decide on your mounting holes drill them out. Make sure to not drill into anything important for the speaker.