I purchased a home recently that turned out to be a mobile home with add one. On the outside it looks great and never guessed it wasn’t a stick built home, but am finding LOTS of undercover issues! I decided to convert my extremely small full bath into a half bath when I discovered the subfloor was becoming spongy due to a shower leak. I started to rip out the tub, when I noticed a random electrical wire hanging behind the shower pipes. It was wrapped off with electrical tape and was hot! I can’t figure out where it goes or what it’s for and even if I shut off all the breakers in the box, it still reads hot on my circuit tester. Any idea what this is or why it would possibly be there? The electrician can’t come for 2-3 weeks and I know not to try to DIY this kind of thing, but I am curious if anyone else has ever heard of something like this? Thanks!