Well, that is the $64,000 question. Lol. It is frustrating and you could have two "identical" units side by side and there is no certainty that they would both be wired or plumbed the same. That goes for most all manufacturers though.
Andy, Sherrie, Dixie, and Daisy
2020 Chevy Silverado 2500 SRW Duramax 10 speed GM/ Allison
2020 Jayco 336FBOK Modern Farmhouse
CURT Q20 on R20 Slider