Is there a way to wire two amps for two subs without buying two wiring kits.

 

You can run one thick guage wire from the battery to a distrobution block, which branches out to two smaller gauge wires to each amp. A single RCA could be run with a Y connector to split off to both amps. The rest is basically the same.

 

run a larger guage primary power wire 0/1 or whatever, to a distrobution block.. then the extra rca's and turn on etc