Photo 1 of ***MISSING PARTS*** NAPHYLAIFA Universal Bass Knob Control for Car Amplifier, Bass Volume Knob with 4-Pin Extension Cable.

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Photo 1 of ***MISSING PARTS*** NAPHYLAIFA Universal Bass Knob Control for Car Amplifier, Bass Volume Knob with 4-Pin Extension Cable.Photo 2 of ***MISSING PARTS*** NAPHYLAIFA Universal Bass Knob Control for Car Amplifier, Bass Volume Knob with 4-Pin Extension Cable.