2003 - 2004 BMW Z4 AM FM Radio mp3 CD without Navigation System. Part Number: 6512 6932428-01. Code not included. This radio will need to be unlocked by a BMW dealer and paired to your vehicle. See below for details. This is for a BMW Z4 AM FM radio mp3 CD player without navigation system. This radio has been professionally remanufactured, cleaned, and serviced as needed and thoroughly checked. The radio is in good condition, as pictured, and is in 100% working order. This radio is being sold as a REPLACEMENT ONLY! The part number is 6512 6932428-01. 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 us a call 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.