I have my VIN #. How can I determine the radio amplifier's part # without having to open up the dash and unscrew the radio? Is there a parts site where I can enter the Vin # and find out what radio part # I have. My radio, like many people have said on this site, stopped working and I would like to be sure of the part number to order a replacement. Most websites are offering remanufactured or repaired radios with different part numbers. They claim they will work in my car, however, they always have a disclaimer that says it has to match the original part # exactly. I thought my part # is DR3Z-18C869-EA. However, I can't remember how I came up with that info, and I want to verify it, without having to remove the original busted radio. A lot of Ford dealer's websites say that part number has now been discontinued. Not surprising since these made in China radios seem to break for a lot of Mustang owners. Thanks for any advice or input