Connectiong headunit to three amps

In my old focus I was running just one 12 inch sub,and I hooked up the RCA wires to the back of the HU and then just ran it to the amp.Now my ? is,Im getting a new car and I plan on running three subs and three amps,how do I hook up the Rca to each amp.Do I run the RCA from the HU to one amp,and then just connect each amp toghter with the other RCA plug outlets?

get a crossover

yes, if you have one that has three outputs, that feed from one imput, there are some rca splitters out there, or if you are using a stock headunit, you could use three hi/low converters

What kinda amps are they. Many amps have rca in and out, if they do then you can daisy chain them all together.double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

They are phoenix gold 1600watt 4 channel pd-396,I would rather have the clean look though because the amps are going to be exposed

You can still use the ins and outs to have a clean look provided you know how to run wires properly.double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer

Yes I do for the most part,I will just buy that four channel RCA cable,thanks for the replies guys.