1995 ford f150 keyless remote programing

does anyone contain some info on this subject? I have tried to locate a programming guide with no luck. I current have a 3 button factory remote installed and received a 4 button ford factory keyless remote. My two questions are: Is this compatable and what would be the proper procedure? Any help would be welcome. Thanks!

The four button is probably not compatable!Contact your local ford dealer service department.
ask for the # to the company they use to repair these parts. they inturn will beable to help you program your keyless entry/alarm!