Does anyone know if there are built in crossovers in the stock speaker wiring? I'm running a sony head unit and 4pioneer A6865 3-ways (6x8). In the front I don't get the bass that I do in the rear and in the rears I don't get the highs that I do in the front. There are no filters set in the head unit so I was just curious. BTW, I am bypassing the factory amp....the car had premium sound not the mach 460.

 

there are no filters if you bypass the amp. Check out page 2 of my sig to show how to get the best sound out of the mach.