Morning Everyone.
I have replaced a couple of "Camper Side" pigtails for Lance 1172s.
Inside the R/V, you need to remove the carpeted step that you stand on to climb into the cab/over. You do that by finding the screws hiding in the carpet. Once you find all the screws (5 I think) - voilĂ the plywood step can be removed.
To the left of that step, is a smaller carpeted piece of plywood. One time I had to remove it - one time I did not. Same procedure look for the screw heads in the carpet.
Lance makes it very miserable to change out that Camper Side pigtail. To the left of that black Atwood Board is a couple of cut/outs in that piece of wood that supports the Atwood board, where wires are coming thru. Once you wade thru the rat nest of wired, you should be able to identify the black & white 8 ga charge wires that come from the T/C pig tale.
I found by removing the screws that hold that plywood with the atwood board and the mess of ground wires and the 2 grounding bars, you could slightly slide or lift that plywood to the right and access the lance pigtail
Good luck
Mike Tassinari
P/S - I need a bit more specifics before I cam answer your second question.
p/m me and we can exchange phone numbers and chat. Mikeee