Just a quick update, got the back-ups working and the dome light chased back to the headlight switch- a little fiddling and it started working again- so a new switch seems to be in the future. So all lighting issues seem to be taken care of now so thanks again for your time and brainwork getting me pointed in the right direction.

If you can't find'em, grind'em, when you find'em, wind'em!!