yep i have the same problem, my 92 factory alarm.
i have the remote but the part where the key ring goes on broke. so i tried looking for a replacement remote on Ebay, and no luck. i have found other ones that the dealer told me WILL work, but i tried and tried and i cannot get them to prgram into the system. only my remote will program to it. i have instructions on how to do it and i have tried 2 diffrent remotes other than the original and no luck.
if you get any luck, please enlighten me with your find, i would really appriciate it.
thanx