Good luck! There is at least one other thread on this issue. I spent over a day fishing for the wires on my 2020 4081. I used a tone generator to try and locate them but could not pull them out. I ultimately cut a hole big enough to reach in with my hand (hole was smaller than cover plate). The wires were about a foot from the plate and were under other electrical wires. It was difficult to even pull them out with my hand. I would never have been able to fish them out. I drilled a smaller hole nearby to route to my combiner box. I used the cover plate to cover the original hole and used a lot of decor. Ultimately worked out fine but I regret waiting so long to cut the bigger hole as I wasted a lot of time. I did gain an appreciation of how well Nemar insulates the roof as there is a lot of it.
2020 Dutch Star 4081, Spartan
1200 Watts of Solar