remote keyless entry for 94 Astro van

Can a 94 Astro van be programmed with keyless entry and if so, what is the procedure?

Can a 94 Astro van be programmed with keyless entry and if so, what is the procedure?
Well a 1994 and 1995 Lumina APV is like this:

LUMINA APV/MINIVAN 1994-1995

WHEN:
**REMOTE TRANSMITTER ADDED OR REPLACED.
**SYSTEM MALFUNCTION.
NOTE:EXISTING REMOTE TRANSMITTER MEMORY POSITIONS MUST BE ERASED FIRST.
HOW:
(1) TO ERASE CENTRAL LOCKING TRANSMITTER MODULE MEMORY, PROCEED AS FOLLOWS:
a)ACCESS THE CENTRAL LOCKING CONTROL MODULE (LOCATED ADJACENT TO THE GLOVE BOX ON BODY SIDE FRAME)(On my 1995 Lumina I had to remove the glove box, it was positioned in the middle directly above it).
b)SWITCH IGNITION ON.
c)PRESS AND HOLD PROGRAM SWITCH {1} ON THE CENTRAL LOCKING CONTROL MODULE FOR 10 SECONDS(it was a small purple rod about 1/8 of an inch long.
d) DOORS WILL LOCK AND UNLOCK TO CONFIRM MEMORY ERASURE.
(2) TO PROGRAM REMOTE TRANSMITTER PROCEED AS FOLLOWS:
a) SWITCH IGNITION ON.
b) PRESS AND RELEASE PROGRAM SWITCH {1} ON THE CENTRAL LOCKING CONTROL MODULE.
c) WITHIN 10 SECONDS PRESS ANY BUTTON ON THE REMOTE TRANSMITTER.
d) SYSTEM WILL LOCK AND UNLOCK DOORS, INDICATING REMOTE TRANSMITTER PROGRAMMED.
e) WITHIN 10 SECONDS PRESS ANY BUTTON ON SECOND REMOTE TRANSMITTER.
f) SYSTEM WILL LOCK AND UNLOCK DOORS, INDICATING REMOTE TRANSMITTER PROGRAMMED.
(3) REPEAT ABOVE PROCEDURE FOR OTHER REMOTE TRANSMITTERS.
(4) WAIT 15 SECONDS AFTER LAST REMOTE TRANSMITTER PROGRAMMED BEFORE OPERATING REMOTE TRANSMITTERS.
(5) OBTAIN AND REPROGRAM ALL REMOTE TRANSMITTERS.
NOTE: A MAXIMUM OF 4 REMOTE TRANSMITTERS CAN BE PROGRAMMED.