RFCC TTG2 is a combination rear-view camera adapter and front-view camera switch system. The installed rear view cameras should be powered from the ACC line to work. Without the ACC line power, the camera will not be active. The input voltage is either from a monitor or a battery. It supports only NTSC cameras. If you’re thinking about getting one of these systems for your Tacoma, keep in mind that you’ll have to reinstall the entire radio.