I have a 1994 Ford F-150 Ext. Cab 5.0L XLT

I was wondering how I program a keyless entry fob for this truck?

I just bought the truck from a guy who had it for a while and he knew nothing about the keyless entry part.

I read off some other sites there is a grey conector with two pins in it that you have to "jump" and it will unlock the doors then lock them.. and I found the conector (I think) and tried to jump the two pins and it didnĀ“t do anything..