Ooshkaboo - Thank you for describing the camera leads being inside a black sleeve. This was a breakthrough for me, as I had two sets of red & black wires routed under the bench from behind the passenger-side rear corner pad. Once I had your sleeve guidance, it was easy to determine which were for the camera.
After exiting the sleeve, the camera wires were connected to a red/black pair using blue crimp connectors.
I think the other red and black pair were feeding a speaker ??
The red/black pair feeding the camera were "bonded" together (zip cord). I traced it under the bench and installed the inexpensive filter from Amazon that was linked earlier in this thread.
I put a couple tie bands around it all but the filter is light and I didn't think it needed any other strain relief.
I probably won't know if this fixes my intermittent failure until next year but I'm happy I was able to follow all the guidance in this thread and get it done.
Mike