stereo wiring diagram on 1990 Mercedes-Benz 420SEL

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.

by in Loose Creek, MO on June 29, 2010
1 answer
ANSWER by on October 08, 2010
most libraries have an electronic reference called alldata. its gives wiring diagrams.

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