I would start by rotating the drivers seat to a point where you can raise the footrest and look at how the seat is bolted to the floor. Then I would figure out how to remove the passenger seat and the pedestal. Once laying on the floor take it apart piece by piece until you can access the wiring.
You might call flexsteel with your chair model number and ask for an exploded parts drawing, or even how to raise the footrest manually.
"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson
David Bishop
2002 Winnebago Adventurer 32V
2009 GMC Canyon
Roadmaster 5000
BrakeBuddy Classic II