haha.. being from oklahoma and part redneck.. i have experience with this..

Antenna needs to go as high up as possible or you get shit signal.

Power = any source that is on when the key is on (first one to mind, radio).. ground - any metal like firewall, floor, or bracing that touches those. Make sure to grind the paint/coating off and you get a bare metal ground.

how are you going to run the cord for the antenna? You can get an extender if it dont reach and run it under the cab and through a hole in the floor, out the sliding back glass (if you have one).. have fun with it. Messing with truckers is such a lost pass time.