1994 Fleetwood Flair 22D wiring ?

[newbe2rv]

Does anyone have a dash wiring diagram (radio / speakers, four speaker system)? I'm trying to install a new single din stereo unit but cannot figure out the speaker wiring, it appears there are six wires all solid (no stripe) ,1 each, purple,white,green,blue,orange,brown ,
Someone has already messed things up things in the wiring department, which makes the process more challenging .
I am electronically challenged but was hoping I could manage to get this done without frying anything. Any help would be greatly appreciated ...........Thanks

 

[Supers05]

If you haven't done this already, I'll be doing the same over the next month or 2 on mine.