im looking for an older Pioneer am/fm cassette Player for a car KEH-M Series it has to be pioneer and in the KEH-M series this unit may be a slider or have a detachable face plate, on the back it has a round 13 pin pigtail socket to add a cd changer , this 13 pin socket may be in with the power block also ,here are some Model #s all start with KEH-M (5500-5500QR-8200-7500- 8500-7200QR-7000QR) there may be other model #s . if you have this item send a price in US dollars and all other info ,a picture if you can