I'd like to reiterate in a separate thread what several Thor Owners have recommended (especially to newbies). Contact Thor Customer Service (
https://thormotorcoach.com/motorhome-owners-resources/) and go to the Contact Customer Service button. Fill out the information form. Be sure to include your make, model, floorplan, and VIN.
Ask Thor for the following for your VIN: fresh water layout, sewer layout, sewer termination drawing, electric schematic, coach harness, battery schematic, rear and side plan showing location of the wall studs, dash radio harness, radio pigtail.
Thor will send you an email with each of those construction schematics in PDF format. They'll show you where the low point drains are located, what connects to the black & gray tanks, how the wire harnesses are routed, where the metal studs in the wall are located, how the batteries are wired, etc. These drawings will tell you a host of important information on your specific coach.
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