Hey everyone, Ok; so I've been searching through the forums looking for some answers but I haven't really found any. Here's my problem i'm having.

I have an aftermarket Kenwood KDC-X995 head unit, I recently replaced the speakers up front with a MB Quart component set, I also added a 4 Channel 1600 Watt amp to power the new 6 1/2 inch kicker subs I have as well as a 10" sub in the very back. I just got done installing the amp to power the subs, the amp works decently, HOWEVER, I am having some massive distortion from the component set up front at higher sound levels. The component set up front is still connected to the factory amp, my questions are as follows:

Is there a gain control on the factory amp or something? It seems like the gain is way to high on it or something! ALSO, would it be wise for me to just to bypass the factory amp all together and run new wires to the new amp I have powering the subs? I would obviously have to add a new set of RCA's and all that junk, I would really just prefer to use the factory amp to power the components in the front but for some reason is sounds like crap now, any ideas? Thanks in advance.