Based on your profile you own a 2017 Thor Challenger, I'd suggest putting this info into a signature line, people will respond faster and with better advice.
First place to check is the chassis fuse panel. You'll have to find it, could be anywhere.
My wifes friend has a 2019 Thor and her fuse boxes were under a removable panel on top of dash held down with Velcro. Had to call the factory to find it and the tech guy had to go out to the factory floor and ask the foreman.
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi