The OEM Mercedes C-Class Stereo Head Unit with Heater Climate Control Switch Panel is a high-quality product designed for Mercedes-Benz vehicles. Durability tested and 100% leak tested, this head unit features the manufacturer part number for stereo head unit A203 870 45 89 and part number for climate control unit A203 830 40 85. This product ensures seamless installation with no drilling or modifications needed, providing a convenient and reliable HVAC control system for your vehicle. Ideal for maintaining the original look and functionality of your Mercedes, this stereo head unit with heater climate control switch panel is a top choice for any Mercedes-Benz owner. Any questions feel free to to ask