I have an 04 dodge ram 1500, everything is stock except the two 6x9s in the front doors that I just installed. Kenwood kfc-6966R, turned system on and they sound horribly scratchy / distorted / muffled / blown at any volume and any bass or treble settings.. ram doesn't have infinity sound system either, truly a very stock setup, was just looking to replace a blown speaker... what did I do wrong, please help!?