Problem with 1996 Nissan Sentra. New Battery, Changed Starter, ...No power what so ever. Not even a Dome Light?
Yeah, battery cables sounds like a good place to start. And even better place to start might be simply cleaning the cable tie-downs, those things can get extremely corroded and not allow the battery to make good contact.
Otherwise, sounds like you've just left something off, or loose. Ground wire somewhere maybe...
Problem with 1996 Nissan Sentra. New Battery, Changed Starter, ...No power what so ever. Not even a Dome Light?
One thing is easily overlooked,, battery cables need to be changed.