Car central locking remote?

i have got a aftermarket Central locking kit, i was wondering is there a way of making it remote entry with installing a alarm? also how safe is the remote entry? can some one with the same setup just go up tp my car and unlock it?|||That could be a problem. But the chances is near to non. There are hundred of thousands code. You need to take it a stop that install alarms system. Since you did not give out the maker of the aftermarket center lock kits. There are to many on the market to keep up with. I prefer to use the car maker system. Because is easier to fine service for it.