DannerFirst off, welcome to winnieowners!
Second, you should add a signature to your user profile. It usually includes the year, make and model of your coach, but can include other information. A signature is appended to each post. To create/edit a signature, click on the "User CP" link in the orange bar at the top, then click on "Edit Signature."
Wiring diagrams are available for your coach:
1999 Minnie/Spirit 322R Wiring Diagram Book
This diagram set, Sheet 3 (page 4 of the PDF)
Body, Wiring Installation
shows the 120/12V power center, and which wire is supposed to go from the fuse panel to loads.
You should find this diagram set helpful, too:
Body, 12V Wiring Diagram
This document lists the circuit abbreviations and their from-to pairs:
Wiring Identification Guide