I'm not an engineer, never played one on TV. But connecting both wires from the radio to the battery with a fuse on the red wire has worked well for me. The only time I had a noise problem was with CB connected to the auxiliary cigarette-lighter type socket (is there a better name for those?). I have used other radios that way without a problem. (And this is on a Ram, V6, not much extra electronics just A/C and built-in AM/FM.)