It really depends on how you want to do it. What gauge of power and ground do you currently have running to your sub amp and what amp is it? You might be able to just get a distribution block, put it at the end of the power wire you already have, run a slightly smaller wire to each amp from there. Ground them, then daisy chain your remote turn on lead. Aside from that, you would need to run RCA's to your head unit of course. Does your head unit have front/rear/sub outputs on it? That will also help decide if you can even do this right.
On the other hand....you have other fingers.
In my family we teach that boys have a God-stick and girls have a Shame Cave. -John Stewart
its impossible to run a 12 volt audio system in a crank-start Model T.
I'm just messing around. More details would be nice
144db@38hz! It hurts so good !