Unknown Cover

I found a stray cover while cleaning my van and not too sure where it belongs so if anyone here can help me out that would be a plus it has a ford part number:
1F22-1761349-ABW
CVR-RR ST BK LAT
RH
TIERCON PLASTICS
MADE IN CANADA

i have looked everywhere for a place to be missing a cover and can't find it
i would upload a picture but my phone takes huge pictures 5-6megs in size
i tried to attach them so i will see how that works

this is what i am talking about

http://i963.photobucket.com/albums/ae119/98Mustang_Driver/20151028_152904_zps1k5un6l5.jpg (http://s963.photobucket.com/user/98Mustang_Driver/media/20151028_152904_zps1k5un6l5.jpg.html) http://i963.photobucket.com/albums/ae119/98Mustang_Driver/20151028_152849_zpseokfkg47.jpg (http://s963.photobucket.com/user/98Mustang_Driver/media/20151028_152849_zpseokfkg47.jpg.html)

That goes on the end of the bench seat.

I would never have thought to look there...... that seat i took out and tossed in the back of the lx as i don't need it and until i get the trans fixed on the LX it became my storage locker.... again thanks the cover has been rattling under my seat since september just really started to get annoying as the temps here are dropping to 3c i guess i wait till spring now to get the abs fixed as i apparently need to take the whole unit out or drop it down to get at the control unit and i need to invest in a obd2 that i can bleed the system with

I just paid a shop $60 to do a full brake fluid flush and bleed it out for me. With the bit of air that comes in from that job, you can still carefully drive to a shop. (Brakes still work, just a lot more mushy and won't stop on a dime.)

Get some line ("flare nut") wrenches. Don't attempt to use a standard box-end wrench to remove those lines or you'll be sorry!!