theronm Posted April 17, 2010 Posted April 17, 2010 so i have a 93 sc300 and im trying to put in a new head unit but when i hook it up only the front speakers work. which wires go to the rear speakers?
1990LS400 Posted April 18, 2010 Posted April 18, 2010 Attached is a diagram for the standard 93 SC300 audio system - it shows the wire colors. 1993 SC300 std audio sys diagram.pdf
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