1995 Explorer XLT Wiring Question

I found this cord behind a panel ahead of the front passenger seat that wasn't plugged into anything. Looks sort of like an RCA cord but I don't think it is. I did manage to track it back to the rear of the car but I can only see as far as where the rear passengers sit. I'm thinking and kind of hoping it goes to the sub-woofer in the back because I don't think that's working.

On a tag on the cord it has:
"Ford 01
F57F-
18812-BA
06-26-95"

And then printed on the cord itself is:
"YR29271 RG-62/UM" with the ford logo in front of it

So if anyone knows what this is and where it should be plugged into that would be great.