When i turn on the lights on my truck not all the radio ons illuminate. is there a fuse for that?

such as the radio or door ons, etc. also my odometer doesn't always display the miles. sometimes it will flick on and off. sometimes it will stay on sometimes it wont show. are these fuse related problems? its a 2001 f150 extended cab with 83,000 miles and the 5.4l v8.