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Connects an Aftermarket Receiver to Factory Plug on Select 1988-2002 GM Vehicles

Product Features

  • Plugs into car harness
  • Power/4 Speaker
  • 21-Pin plug
  • Used for Installing an Aftermarket Receiver to factory plug
  • Allows for the installation of an aftermarket radio using the existing factory wiring and connectors
  • For 1988+ GM models

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  1. I. Almeida says:

    Wire Harness for the following cars, work well! The harness works as described. I have pulled the following Cars that it is compatible with from the Metra website:BUICK Century 1990 1996BUICK Century 1988 1989BUICK Electra 1990 1990BUICK Electra 1988 1989BUICK Le Sabre 1991 1994BUICK Le Sabre 1990 1990BUICK Le Sabre 1988 1989BUICK Park Avenue 1991 1994BUICK Park Avenue 1988 1990BUICK Riviera 1990 1995BUICK Riviera 1986 1989BUICK Roadmaster 1991 1994BUICK Skylark…

  2. nicholas green says:

    Metra 70-1858 Radio Wiring Harness For GM 88-05 Harness At first I was disappointed with this product. I have a 1994 Chevy Silverado K1500, which comes stock with an AM/FM stereo and cassette player. After removing the cassette player, the plug from the dash did not fit this adapter, nor did it even closely resemble it. After some research I found that you have to remove the CDM box from under the dash (near the steering column). Once this was done the new set of wires sticking out of the dash fit directly into this harness without a problem…

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