oh i forgot to connect the rca output of amp2 to input of amp 3 is would that be correct? as for the subs i m putting 2 alphasonik mayhems12's, batterys i have one kintetik hc1800 but wanna add onemore in the trunk amps i wanna run to 4400 hk from ma audio or the 4000 for the subs, mids would be the ma 4channel 800 watts, and a 2channel for my kicks. im kinda new to this so i just wanna make sure. also the ma 4400 can acheive 4400 at 17v how can i acheive that, would i need a high ouput alt? what would you recommend?