2003-07 GMC Sierra 1500 2500 3500 Extended Cab Audio Amplifier Model ID 15054671

2003-2007 GMC Sierra 1500 2500 3500 Audio System Amplifier (for Sierra/Silverado EXTENDED Cabs) -- No Unlock Code Required -- Professionally remanufactured item in 100% working order. Item may have normal signs of wear. Please see photos for more details. Part Number: 15054671 Interchange Part Number: 638-01500 Compatible Part Number: 15267750, 10394519 Option Code: This is a professionally remanufactured Audio System Amplifier (for Sierra/Silverado EXTENDED Cabs) that fits a 2003-2007 GMC Sierra 1500 2500 3500. 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 15054671. 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.