Custom fit for GMC SierraMangoal Front 4K and Rear 1080P dash cam can fit perfectly behind the rear view mirror like original. No messy wiring exposed, no complicated rewire at all. Perfectly intergrated with GMC Sierra 1500 2019-2021, 1500 LimitedLTD) 2022, 2500 HD/3500 HD 2020-2023 vehicle styles,Such as select Base, PRO, SLE, Elevation, SLT, Denali, AT4(Model A) Please NoteModel A & Model B Have Same Models Years: GMC Sierra 1500 2019-2021, 1500 Limited 2022, 2500 HD/3500 HD 2020-2023 but Vehicle Sensor Cover are Different, Please carefully look at 2nd and 3rd pictures, which are model comparison pictures Sierra Modle EModle E is only suitable for vehicle styles With AUTO DIMMING function and NO the SENSOR COVER, The asin corresponding to Modle E is B0D2NW57KG and B0D2P1QN6X Front 4K and Rear 1080POur dual dash cam which records video of up to Ultra HD 4K(3840x2160)+FHD 1080P resolutions. It helps you to read the key details like road signs, vehicle number pla