The brand Compustar/Firstar has an immobilzer bypass module that does not require a key. I believe for all Expo's the ADT-STB will work they just require a different firmware flash during installation. 2002&1/2 and up WILL require two keys to program the mod, but no key needs to be installed in the vehicle.
Also, FYI if the KEYED bypass module is installed correctly, the ignition interrupt of the remote starter should prevent the vehicle from being started if the key is removed from the "box" without properly removing the module. | 
