I am not sure if this should go in maintenance but I think since it has to do with an aftermarket alarm it should go here but.....

If I get my aftermarket alarm removed, will the factory installed keyless automatically kick in? I know with my keyless if I locked the doors with the remote and opened it with a key the alarm would go off. Also, It would be a few days before I can get my FOBs for my factory alarm sync'd. So would I have a problem once the aftermarket alarm is removed?