ChiLin For BMW 3, 5, X5, X6 Rear View Camera & Reverse Parking Camera & Waterproof Backup View Camera Simple to Install (see steps below) - No drilling, only DIY skills to fit Reference line functions for Distance between your car and barriers Waterproof Shockproof Temperature Resistant Moisture Resistant Low illumination, Night Vision and fill light automatic, waterproof 170 Degree Wide Angle and HD High Definition Resolution ;Unbeatable price and CCD solution available for mass order