This is a factory OEM Amplifier used in 2002 - 2003 Dodge Ram 1500, 2500, and 3500 vehicles. The amplifier is in good condition. This amplifier is being sold as a REPLACEMENT ONLY. If you do not have this exact part number currently in your vehicle, it will likely NOT WORK. If you are unsure of your part number, give a Chrysler/Dodge dealer a call with your VIN and they should be able to provide you with the correct part number.