Currently I have a Sony Head Unit that doesn't have an Aux input, so I'm looking for a new one. I have a 4 Channel Amp and a 12" JL Audio Sub hooked up to it. This means that whatever new stereo I buy needs to have a "set" of preamp outputs and not a "pair" of preamp outputs correct? Can anyone point me in the direction of a CD Player or Even a Cassette Player that will accomodate all that i have? Thanks!