I was thinking of prying our that panel and disconnecting that switch as well. My daughter whose car seat is back there also messes with that button. She seems to have stopped messing with it though so we will see.
2017 Cadillac ATS 3.6 awd Premium, Phantom Gray, Carbon Black package, Recaros
2017 Pacifica Limited, bright white, black/deep mocha, AST, blu-ray, 20” wheels, HK audio