Trekbiker, if your Classic is wired similarly to our Globetrotter, the loom of wires enters the bottom of the coach in a compartment (ours is under the curb side twin bed) where the DC distribution box is. If you can find that, you should find the end of the white wire.
Itís possible the wire was part of the add-on solar install. The factory solar terminates in the DC distribution box. Below is a photo of the compartment and what youíll find in the DC box.
Donít worry about not being an expert on electrical. You can learn as you go! We all started from the beginning at some point.
2019 27í Globetrotter FBT Walnut/Dublin Slate
2019 Ram 2500 6.4 Hemi Laramie Blue Ox 1000#