1. For when you have got your hands full Combined with the Keyless-Go function and working with the Automotive Electronic Tailgate, the trunk can be opened simply by waving a foot under a sensor, making it enormously convenient when carrying a load of shopping. 2. Closing the trunk is as easy as pressing a button or waving a foot again to shut the tailgate automatically. We call it STO system (Smart Trunk Opener). 3. People who take the car keys in a short distance can kick off the tailbox. 4. Harness: Yellow + Red ACC Black GND- White OUT- 5. Wiring method: Green connect to the open door button Blue connect to the tail light