TheÂ Bully Dog 40463B GTX Vehicle Expansion Kit allows you to easily transfer your existing Bully Dog GTX into a second vehicle. Included with the 40463B is a vehicle interface module, suction cup mount, OBDII to HDMI cable, and magnetic cable allowing you to simply take your GTX Head Unit from one vehicle and snap it onto the magnetic mount in the other. The GTX then recognizes the vehicle it's in and automaticallyÂ adapts to it. It doesn't get any easier than that! Features: Tune & Monitor a Second Vehicle Automatic Vehicle Recognition Includes Everything Needed For Mounting Note:Â The GTX Head Unit is not included with the GTX Vehicle Expansion Kit (see below).