I have one installed running my sub, but I am thinking about getting another more powerful amp for my sub and to use the existing one to run the fronts or backs. Is it possible to connect both amps to the same battery/ground/remote wires or do I have to install a separate kit and do the same install as for one?

 

i don't know if you could you do that but i know you could do either one of these..
1) buy a distribution block...this is not the best if you are concerned about spending some $...
2) you could buy a capacitor...run the power wire to the cap...then run two seperate wires from the cap to each amp...this is the best way cuz all you have to buy is the cap and some wire just from the cap to the new amp..