if your amps have rca in and out put its easy...run a set of rca's from the radio to one of the amps input channels then get a short set of rca's and go from that subs output to your over subs input... i would runs a power wire back to a splitter block and then take 2 a power wire to each, ground both the amps good then do a set of speaker wire from each amp to each sub...make sure when u tune the amps to tune them both the same so your subs both hit the same and one doesn't over power the other, it could make the subs sounds like shit, depends on accoustice of the car/truck/whatever....do that and