My antenna booster / selector is located in the front right cabinet next to the TV. As for the fuse boxes there is one at the floor to the left of the steering column. Under the hood there is another to the left of the air cleaner near the top, it's tough to get at. It's also a real bear to get unsnapped to gain access to the fuses. I would assume , oh no used that word, that your Chassis is similar to all the rest since they all come from Ford. Congrats on the new / used Georgetown. Any other questions just ask, there's plenty of helpful, knowledgeable people here.