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Review title: Quick delivery, poor product
Product review: Product comes with no instructions. There is a slip of paper in the package that says Installation Instructions but the only thing that is on it is the location of the factory amp on a half dozen GM cars. There are three black wires labelled chassis ground? Are they supposed to be hooked together? The RCA plugs are not labelled so no idea what channel they are.No support for this product on Metra's website. Spent 20 minutes on hold with their tech support, finally had to hang up.Grrrrr.
