Okay so i have a 2002 cadillac STS and i have pretty much everything set up, but i didn't want to take my stock deck out. So i bought a Scosche LC80 converter i had it connected to my sub in the back of my car and it sounds really good. Then someone told me my stock sub was hooked up to a stock amp so they're fighting for the power so i unhooked it and hooked it up to my door speakers. I wish it sounded as good as it did to my sub but it doesn't. My question is can i hook it up to my stock sub? Without it causing any problems or is it better to have it hooked up to my door speakers? Because if that's true i'll probably sell my stuff.