I added a Tekonsha brake controller to my 2019 RAM 1500 to tow a Keystone 25’ travel trailer. It worked fine for a couple years but after plugging it in for my last trip, the controller appears to have no power. I’ve made sure the cable is securely attached and now trying to rule out a blown fuse but none of the fuse diagrams show location for a trailer brake controller. Does anyone know the location of the fuse?