I can't read squat if it is marked on the fuse box. My 66 original manual states it is a 7.5 amp fuse, and is located the furthest forward in the middle (top/bottom). Controls courtesy lights, rear lights, and clock.
Let me check your shorts! My multimeter is just a-waiting!
King of the Old VMF with >5000 posts, so ignore the titles here...I'm really THE Old Fart *LOL*