Dodge Repair: rear fog lamps

Question
the rear fog lamps on my 2003 dodge ram 2500 are very dim no brighter than a side light / where does the feed come from /how can I rectify the problem ?

Answer
Hi Colin,
Would you describe what you mean by a 'rear fog lamps'? I don't see lamps by that name in the '04 wiring diagrams. When are they illuminated (which headlamp switch label) or other condition causes them to light up?  Do you mean the back-up lamps?
Roland