1994 Safari Continental diesel pusher

I don't think you'll find it because it likely doesn't exist. The way RVs are put together, two of the exact same model can come off the line in the same day and be wired completely different with no documentation at all. Modern RVs have gone to standard wiring harnesses, but in '94 it was more hobbled. What specifically is your friend wanting to know?

Here's a 10 year old conversation about something similar on IRV2:

https://www.irv2.com/forums/f258/safari-wiring-242129.html