Question about 1990 Mercury Grand Marquis

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I have a 1990 Mercury Marquis and am putting in an after market CD player. I get music but have to have the volume turned up all the way to get any sound. What am I doing worng?

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You have a faulty ground wire that is not properly attached or your speaker wires are reversed

Posted on Sep 11, 2010

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NO problem here, the supplier of the CD player will have an interface(wiring plugs adaptor) that will convert the original wiring to suit the (new) replacement unit. A good Auto Elec will also solve any problems but the interface wiring will illiminate all this. Good Luck

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