1987 1988 1989 Cadillac Allante Radio Amplifier. Part Number: 16064656. Interchangeable Part Number: 16055943. Radio Not Included. No Code Required. This is for Cadillac Allante radio amplifier. This amplifier has been cleaned, serviced as needed and thoroughly checked. Condition is good with very little wear. See pictures for more details. Appearance is as pictured, function is perfect! Blemishes: Very minor wear on the amplifier chassis. This amplifier is being sold as a REPLACEMENT ONLY! The part number for this amplifier is 16064656. 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, contact us with your VIN and we 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.