P1000 What is this ground wire for

[bigshoe]

Im trying to keep from tearing this thing apart to figure out what this ground cable Is for. can't find any info in the owners manual its starting to annoy me.

 

[AZRocks]

Spare ground ground for whatever you want. Primarily intended for a winch ground. Added starting with 2017 or 2018 models—don’t recall which year.