1992 Corolla Keyless Entry System

Hello all, I have a 1992 Corolla where there is no automatic door lock on it. IE, I would either have to use the key or manually pull up the lock to unlock the door. I also have the manual window winding system. Anyway, I'd like to know if it is possible to make the door lock system automatic so I can use one of the key ring remote to unlock the door.

Thanks...

... u want central locking like my car cost bout $120 a door thats AU $$$
and power windows ..... ahhh go 2 a place were they do that and giv them money and they will giv u ure power windows ...