Go to fordparts.com type in 1S7Z-7M101-KA. I bought mine through them a few days ago for like $14, $20 with shipping.
I sucessfuly installed the TSS on my 1995 Mystique with 80k miles. Works perfectly. There was some concern about the new TSS on older contiques, but I can assure you it works with the old 95's just as well. Best $20 ever spent.
