Hello my names brodie I have a kicker zx700.5 amp but I have an alpine headunit with sub and front and rear rca output ports but dont know if running the 3 rcas to the amp will work or not im running kicker 300 watt 6.5 and 450watt kicker 6x9 speakers and the compettion dual subs kicker as well basicly to run everything off the 1 amp just need to know should I buy a headunit with just the 2 outputs sub and speaker or not please help