Not that I found. Try your Ranger. If it works then the Mustang is too old.
I think it has a rolling cut-off date. When I bought my LS in '06, I tried it for the heck of it (I bought it new, so I had the real window sticker), and it worked. I tried it again earlier this year and it didn't.
Edited by SoonerLS, 30 December 2011 - 01:30 AM.
So, give it over, take a break
Shut your hole, you're causing my poor heart to ache
To all you saints and sinners, you losers and you winners
Here's to one more day above the roses
-- Gaelic Storm, One More Day Above the Roses