With connector AMP 1-967640-1 (siren side) and AMP 174259-2, you can make your own cheap siren cable 180072. As you may know, if your dead siren is earlier style (assembly number till 30998), you will need this 180072 cable to use GM siren.
As for the female connector on the main harness, it is AMP 174257-2. You might want to check or replace the pin. Contact after years is an issue for me. Manufacturer document shows how to remove/extract the pin, if you do not want to cut the wire. Image Unavailable, Please Login