Okay... I have an 08 Mitsubishi Galant factory stereo.... factory everything, it is a base model nothing special.... Bought a cheap sony xplod 1000 watt, 2 channel amp and two 12" audiobahn subs.... hooked everything up and NOTHING.... what the heck? the power light was on and green on the amp. also installed the rca converter to connect to the rear speakers. my buddy thinks that the factory amp has something to do with it?>??? I have no clue.....PLEASE HELP Thanks 2every1......

btw amp model number is xm-1652z if that matters thanks again