2001-2002 Porsche 911 OEM Digital Audio Amplifier System Part Number 99664532401

2001-2002 Porsche 911 (excluding Turbo) Digital Audio Amplifier System -- Dealer Turn On Maybe Required -- Professionally remanufactured item in 100% working order. Item may have normal signs of wear. Please see photos for more details. Part Number: 99664532401 Interchange Part Number: 638-57756 Compatible Part Number: 99664532400 Option Code: This is a professionally remanufactured Digital Audio Amplifier System that fits a 2001-2002 Porsche 911 (excluding Turbo). Please see pictures for more cosmetic details. This item has been cleaned, serviced as needed and thoroughly checked. Function is in 100% working order! This unit is being sold as a REPLACEMENT ONLY! The part number is 99664532401. If you do not have this exact part number, or compatible part number currently in your vehicle, it will likely NOT WORK. If you are unsure of your part number, contact us with your VIN and they should be able to provide you with the correct part number. They may look the same and have the same plugs but data streams may be different, not allowing them to code. For example, external amps are used in some cars and will not allow interchange, etc.