I am desperatley trying to figure out ways to keep low frequencies from being passed to the speakers in the door. I don't mind the way the subs sound, but I just don't like the way the bass sounds coming from the doors.

I've considered getting another sub/amp combo and using my apline's high pass filter to do this, but that will cost alot of money as well as take up space in the trunk.

I came across these at Crutchfield.

http://www.crutchfield.com/S-byLT7EZ...rch=crossovers

Does anybody here know if the wiring going into or out of the factory amp uses RCA connectors like this?