Compatibility Guide Choose the Right Dash Cam for Your RAM: 1 Check Your Vehicles Year Select the correct dash cam based on your RAMs generation. 2 Match the Right Model Refer to product images for compatibility details. For 4th Gen (Older RAM) (2013-2018 RAM 1500/2500/3500 & 2019-2024 RAM 1500 Classic): Choose Model A/B/C. For 5th Gen (Newer RAM) (2019-2024 RAM 1500/2500/3500): Choose Model D/E/F. Selecting the wrong model may result in installation issues. Please carefully review the second image to help select the correct model.The size of the RAM Model E original car cover is larger than that of Model B/C.The front hole is labeled with the size.In addition, Model E is applicable to RAM 1500/2500/3500 2019-2024,while Model B/C is applicable to RAM 2013-2018.The difference between model E and model F lies in the shape of the tail of the original car cover The tail of Model E is a Rectangular surface,while the tail of Model F is a Curved surface. Custom