I just installed some alpine 6x9s and the alpine type x component into my accord. Currently I wired the component set using the door lead from the head unit to the crossover, from the crossover to the door and dash tweeter. I like the factory look and do not want to change my head unit. My question is, can i use one 4-channel amplifier to power my 6x9s and my component set? this would leave my headunit not powering any speakers and i would be using the speaker leads for my amp. I like this amp also because it has preamp outputs for allowing me to add an amp for a sub.