TR2 Car/Bike Direct Wire Transponder - 2YMyLaps TR2 Transponder for Car or Bike (Red) Direct Wire 2 Year Subscription The TR2 Transponder Direct Power has made charging a thing of the past. The TR2 Transponder Direct Power is connected to the battery of the vehicle which powers the transponder. You only need to install the TR2 Transponder Direct Power once to your vehicle and you can then easily manage your subscription while the transponder stays installed, there is no need to manually