thinking about this one:
2014's BEST Deal On Kenwood KMR-D358 Marine Stereo!

I ordered some 250 crossovers and will install them to the fronts just as the "biggest bang for the buck" thread suggests. Those should remove some of the lower frequencies and improve clarity to the highs right?

i should just use the front speaker wires from the new stereo and not the rca's to the factory amp correct?

If i use the sub woofer rca out from the aftermarket unit I should be all set to add another amp correct? (no crossover needed?)