Glove Box Light

I am installing a glove box light that I got out of a 68 Dart 4 door into my 71 Demon. All the mounting hardware looks the same but I am not finding and not exactly sure where the bullet plug goes into. The wire on the end of the glove box light is really short only about 1.5 to 2 inches so there is a limited amount of space it could go to. Also I am looking for the ash tray light for my car that would fit. I appreciate the help.

Jeff