Metra GMOS-13

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GMOS-13Cadillac STS 05-11 Ampified Onstar Interface Provides accessory (12 volt 10 amp) Retains R.A.P. Retains chimes Provides NAV outputs (including mute) Retains OnStar Adjustabl e volume for chimes and OnStar Retains balance and fade USB updatable High level speaker input Show more