From your description something more complex is going on. A simple loose connection can't make the lights come on unless you left the switch on.
If you see a mysterious black box in the wiring then it's probably the culprit. Smart switches, remotes, monitoring and even some dimmers can make funny things happen.
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Rick
2019 Grand Design Reflection 150 273MK,
2015 Ford F350 CC SB Lariat Powerstroke, PullRite Superglide
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