If and when you determine that there is a keyless entry system in your car, go to EBay and find one. There are many sellers out there who will have the right model of remote for your car year and model.. You will require the FCC code # that is on the back of the remote, or at some sites you typically supply your make, model and year.
I got a remote for my son's car for US $9.99 plus $3.99 shipping on EBay.new, never used.
Here's one site..on the web.
http://www.remotesunlimited.com/Detail/Detail90.htm
This is for a 95 Contour: FCC #GQ43VT4T