you run the main power wire from batter with a fuse in the line. get a spillter and have 2 power wires coming out of it. 1 goes to one amp and the other goes to another amp. you take one amp and hook up the remote wire or w.e its called that turns it on so it only comes on when the car is on. its like a power wire bassically. and connect it to one amp and run another wire from that amp to the other amp in the remote spot. take the grounds and connect them to the chassy, you use one amp for the sub and one amp for the 6.9s
the rca jacks will plug into the color coded spots on the back of the radio, and then they go to the amp. you might have to stop by Radio Shack and get a splitter for the RCA cables as well so it will split from the 2 original wires, to 4 wires. 2 for one amp, 2 for the other.
lol i was just curious, my brother suggesting something about a piggy back but i was thinkin more of spliting everthing tways but thanks for the clarification!