Don't have one like yours, but the electrical wires have to be run somewhere from the main frame to the slide--my Suites has a harness that goes from the outside wall (where the 110 outlets are) over to a junction box mounted to the frame. Yours ought to have something like this--are there NO wires running under the slide anywhere?
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired