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Stereo wiring diagram

(1990 Mercedes-Benz 420SEL)
in Loose Creek, MO on June 29, 2010
My son bought a 1990 Merc-Benz 420-SEL -- he is trying to replace the factory radio with an up-to-date CD/radio system -- does anyone know where he can get a diagram of the wiring/speakers etc? Thanks.
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Popular Answer
on October 08, 2010
most libraries have an electronic reference called alldata. its gives wiring diagrams.
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