GSM alarm is not available at Honda. I can't use other alarms because Honda will void my warranty if I have my car serviced outside casa.
With regard to the auto start feature, I don't think my City can have that because it has an immobilizer. The original key must be inserted to start the engine.
Maybe I'll try the Code alarm. Does anyone have a picture of the remotes of the Code, AVT, and Titan alarm? Google gives me too many results that confuses me.
I found this image from google, but I don't know which one Honda sells:
http://kcautosound.net/promos/12_12_code-add.jpg