Reprogramming honda Remote

i have a 97 accord and have aftermarket remotes , it is made by prestige .

i want to know if i can use genuine honda 1999 remotes from ebay tand program it for  this car. ,What if the security system is an after market one can it still be done.

can you please email me a copy of the instructions for the older 1997 honda's

thankyou

thank you much ,what would you suggest as a good after market alarm system for a honda accord 97

my accord remotely locks fine when i press the button but lately i dont hear the chirp when the alarm is armed nor when it is disarmed,only the lights flash,once and twice respectively.

when i am inside the car and the car has been locked with the remote and i open the door from the inside , the alarm does not go off.

any suggestions

the security system i have is HARRISON and the remotes are prestige