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  1. Anybody know the OEM specs for ACDelco speakers in 04 Trailblazer LS?

    General TBSS Questions
    I'm upgrading my audio system with new head unit (done), BUT don't have the NEW speakers whose specs I do know, so for now I'm trying to program everything using the existing factory ACDelco (non-Bose) speakers Front (#10366739) and Rear (#15242746) and want to program those to the new head...