I dont know if anyone has attempted to have bestbuy install an alarm, but my local store in south setauket long island attempted to joyride my 13 gt500 by disconnecting the computer. The odometer still rolled so apparently they only put 1/2 mile on it. On top of that the viper gps system they installed is completely non functional so i'll be having it removed anyway. It sounded great having iphone monitoring of the car but it's either complete garbage or the installer screwed up. Made police report and calling corporate for the joyride part. Just wanted to post this so no one else makes my mistake