For rear fill they aint even good.
If you want to do rear fill find a set of midrange 6X9's or a simple set of2 ways like the infinity ref's.
If you got good speakers up front and a stock radio, dont buy these 6x9's. Buy a head unit then get an amp for the front speakers. You will be happy you did. Its a better investment than crappy speakers.
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-Ryan
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