Pendino1

Thank you all, seems like bass only is the way the rear deck speakers should be. Used to put together my own vehicle sound systems but that was back in the mid 70's and 80's. Typically a Pioneer receiver / cassette deck with an underdash equalizer / booster with Jensen coaxials up front and 6x9 triaxials in the rear. Not as easy or necessary today.

Recently acquired 2009 Fusion SEL with Audiophile Sound system. Only sound from rear deck speakers is Bass when it's turned fully to the rear. any ideas?