Please NoteYour car must have an Auto-Dimming Rearview Mirror Plug Power Adapter(10Pin square plug), otherwise, power can only be obtained through OBD or Fuse box. Parking monitor must have OBD Power Adapter or Fuse Box Power Adapter(asin:B0CXXXV4YG). Model B & Model CThe model B and model C match the same vehicle year and must be distinguished by the vehicle sensor cover. The second picture is a comparison of the Three models. Custom fit for Cadillac Escalade/Escalade ESVMangoal 4k dash cam can fit perfectly behind the rear view mirror like original. No messy wiring exposed, no complicated rewire at all. Perfectly intergrated with Cadillac Escalade/Escalade ESV 2015-2020(Model B).Base standard premium luxury platinum accessories Built-in WiFi, free AppThe built-in WiFi owns higher-definition and faster download speed, and the free user-friendly App makes it convenient to view realtime videos on your phone, download or transfer important footage to PC. You can also share