moonsandals

Is this stock?
Does anyone know what it is for?
1991 Cherokee XJ Limited, 4wd, auto
Came with infinity sound system and keyless entry. Could this be from the amp or something else?

The wires go into the door sill, into the back. I haven't traced yet but trying to figure out if I should replace the fuse (terminals are corroded) or if it's for something not there anymore I could just pull it to unclutter the area.

I checked continuity with multimeter (with battery disconnected) and it seems to be connected to ground.