I just got an amazing deal on E-bay for a Fosgate amp,Pioneer bandpass tube. ($50 both, near new, in box,manuals wiring etc.) This is for my Girlfriends Toyota 4RUNNER that is leased and I am limited to what I can do with head set etc. CAN I RUN 2 AMPS ON THE LINE LEVEL INPUTS, do I even want to if the amp can power seperates and sub but with much less power to each speaker?? Basicaly what are my restrictions Amplifier wise when using a stock Radio and line level input configuration.