hi all saga owners.

last few days my bag was stolen (wallet,ic, car key all inside that bag).
luckily i still have my spare key.
Just would like to ask any recommendation from u all expert,
is there a way for me to change the car remote/alarm without having to change the whole car locking system? (ask one of the SC, whole car locking system cost around rm700-800 ). just scared the theft might find my car using the remote then unlock my car,start the engine and drive it away. (ic also got stolen) . Is there any other cheapest way to prevent this?

any other recommendations are highly appreciated.