I just got my brand new 2006 Honda Accord Lx. Does not come with an alarm system.

I am looking for some advice on where to go to get an alarm system installed. I don't need anything fancy. But do want it to work with the auto locking and unlocking system that came with the keys on my accord to arm and disarm the alarm system.

I live in the San Francisco Bay Area, California. Went to Best Buy the other day and they say they can install an alarm but there are not sure they could get the keys to disarm and arm the alarm.

Do Best Buy don't know what they are doing. Or is getting my keys to arm and unarm the alarms when looking and unlooking to much to ask for an aftermarket system.