We just got our new 02EX Ody earlier this week and I have a question regarding the alarm. If you push the "lock" button on the remote once, all the doors lock. Does this set the alarm also or do I need to push it a second time to actually hear the "beep" of the horn? My husband thinks just pushing the lock button once locks the van and puts on the alarm. I'm not sure about this so I wanted to find out here. Thanks in advance.