Program remote 1997 concorde

I currently purchased a 1997 concorde and got an extra remote from ebay and now I need to program it. I read and tried the instructions I found on here for the 1995. My issue is when I removed the upper center bezel it had only three wires. Orange(3), red(2) and black (1).Nothing is in slot/pin 4. Has anyone programmed one?

Thanks

Kerry