2010 Freightliner Cascadia Lights Staying on gauges

I can only share some Columbia experience. Leaking windshield could flood the breaker - fuse panel and cause problems. Later models came with a clear plastic cover over them.
A Penskie day cab I had hand picked would not turn off the dash and clock lights ( This was years after the purchase ). Found if I pulled one fuse they would go out. That fuse had power to it all the time. I split two fuses and soldered a wire between them. Connected the side going through a fuse to a power with key on terminal, the other side fed the lights.
A year or so later someone else here was asking questions. I removed the panel behind the right hand door and found a multi wire connector that was corroded and green. Cut all those wires and put heat shrink connectors in place. That solved the problem about 5 years ago and it is still good. I thank Chip S for that.
I have read of others with similar problems behind the kick panels.
Sleeper cabs have their own Pandoras box that opens behind the left door. Don't recall a lot about those but never spent a week there.