You are buying one very RARE 1978 1979 1980 1981 Pontiac Firebird Trans Am Formula 400 455 Super Nice Working Original AM FM Stereo Radio. This was a working unit when removed several years ago, may need to be serviced before installed due to its age. I am not sure on the exact years used or car model usage be sure this part is correct for your car. The listed shipping amount includes some of E-Bay 20 % charge ,Pay Pal and handling costs. When you receive if there is a problem please contact me so we can resolve the problem before you leave me a negative feedback. Thank You.