Vista268,
you can get the entire information from Heartland that will match your vin number if you call customer service tomorrow. But there is information in one of these post that show the baker plate. I found the roof wiring in my bedroom. There was a single box cover in the roof that when removed was empty. I had to remove a little bit of the foam then the wire was visible it was a pain to find and even a bigger pain to ret out but both wires were up there. I have yet to find the other end of the Wingard wiring harness though. Hope this helps a little bit.
Regards,
Steve