FAST AND EASY INSTALLATION WITH NO PERMANENT VEHICLE MODIFICATION: Enjoy a true plug & play installation process as this dash cam power adapter plugs directly into your rain/light sensor. The adapter leaves no permanent modifications to your vehicle and keeps your dash cam installation completely hidden behind your rearview mirror. COMPATIBLE DASH CAMS: This Dongar dash cam adapter is compatible with USB-powered dash cams including: Garmin Mini 2, Garmin Live, Garmin 47, Garmin 57, Garmin 67W, Vantrue N2 Pro, Vantrue N4, Vantrue N5, Fitcam, Viofo, 70Mai, and all other USB-powered dash cams. COMPATIBLE ACCESSORIES: This Dongar rearview mirror adapter is also compatible with other USB-powered devices including radar detectors and GPS. OPTIMAL PERFORMANCE: This dash cam adapter is recommended for USB-powered devices drawing less than 2A at 5V to ensure efficient heat management. If you're using a USB-C powered device, please ensure compatibility by checking the voltage specifications beforehand. COMPATIBILITY LIMITATIONS: Please note that this adapter is not compatible with devices requiring 12V or those powered by a barrel jack or RJ11 connector. COMPATIBLE VEHICLES: This dash cam power adapter connects to the domelight in: Porsche 718 and 981 Cayman/Boxster, Porsche 911 (various years and trims) and more. More information is available on the compatibility chart below. Please verify compatibility before placing an order – if you are unsure of your vehicle’s compatibility please contact Dongar support. POWER ON PIN 3, GROUND ON PIN 2 (MIDDLE PIN IS GROUNDED). Please verify keying before purchase. CONSTANT POWER: Runs constant power to your dash cam, including when vehicle is turned off. EXTENDED COMPATIBILITY:: This adapter may also be compatible with additional vehicles with 3-pin rearview mirror connectors. If your vehicle model isn't listed, please verify compatibility by contacting Dongar support for assistance. Dongar adapters allow you to quickly create a power source for your USB-powered dash cam, radar detector, or any other USB-powered gadget by harnessing the power already flowing through your vehicle. Simply unplug the power source in the console located directly above and behind the rearview mirror and replace it with the adapter to power both your mirror and your dash cam or other USB device. Your result: one of the easiest, cleanest installs possible – no hardwiring, no time spent routing and hiding wires in your vehicle, and no distracting wires hanging across your windshield. This 3-Pin Key Way 2 Dongar adapter is compatible with select Porsche vehicles, including the Porsche 718 and 981 Cayman/Boxster, Porsche 911 (various years and trims) and more. For more information, please see compatibility charts. Please note that an auto-dimming mirror is required. If your vehicle is not listed, you can verify compatibility by assessing the pins in your rearview mirror port or by contacting Dongar support. Please verify fit before purchasing. This 3-Pin Key Way 2 Dongar adapter provides constant 24 hour power and features a pass through design with a built-in 12V to 5V USB converter. It is compatible with most USB-powered devices, including the Garmin Dash Cam Mini 2, Vantrue N4 Pro and other Vantrue Dash Cams, 70Mai Dash Cams, Fitcam Dash Cams, Viofo dash cams, and all other USB-powered radar detectors and dash cams. This complete kit comes with shorty USB cables to connect you to MicroUSB, MiniUSB, and USB-C devices.