I purchased a 02 TL-S about 6 months ago and the dealer was offering me two stock alarms. One was more expensive than the other. I got the less expensive one because at that time I didn't think I would need anything sophisticated. Anyway, now I need your help to remind me what it had (the more expensive one). Can anyone help me out? I heard that you could buy a chip from the Internet for $5 and upgrade the alarm to the more sophisticated one!!!