Versatile HK4 Hardwire Kit for 12V/24V Vehicles. Why Choose the HK4 Hardwire Kit?. Install it with ease and connect directly to a wide range of vehicles. Complete Fuse Tap Set Included. Automatic Switch to Parking Mode: With ACC detection, your dash cam will automatically switch to parking mode when the vehicle’s engine is off, reverting to normal recording when the engine is on.