Aftermarket alarm system and OEM keyless entry question

[Crispy]

Ok heres the deal...
When I bought my pony it came with an aftermarket alarm system, but no remotes and the alarm is so old that they dont make the remotes for it anymore. One day I'm assuming I hit cutoff switch accidentally, then stepped out of my car, which armed the alarm, never to be disarmed again. I disconnected the brain and can drive my car again.

Now the question is would I be able to use the OEM keyless entry?

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=2463311197&category=33723&sspagename=STRK%3AMEBWA%3AIT&rd=1

[Brent]

I doubt it. The oem would send a different signal then the one that your brain needs.

[Crispy]

Alright thanks, I found an auction for a complete OEM alarm system I'm most likely going with that.