This is a nice and well-working Blaupunkt car radio with FM, long wave and medium wave (AM). The Boston SQM23 is a stereo radio-cassette player with ARI, 4 speaker connections, 5 preset buttons and automatic channel search that was used in the 1980s in different types of European cars including cars from Ford, Opel, Peugeot and Volkswagen but it will also fit nicely in a Porsche. Nice sound, tested and working, the cassette player also works. The radio is undamaged and complete. - Type: Blaupunkt Boston SQM23 7.643.348. - FM, long wave and medium wave (AM). - Year of manufacture 1983 - 12 Volts - Stereo - 2x10 Watts output power - 4 Speaker connections - Tone control and balance control - Radio dimensions (w x h x d) 179 x 50 x 170 mm - Front dimensions (w x h) 190 x 60 mm In short: a stereo radio with cassette player that looks as good as new without damage and works properly.