im trying to put a cd player in my 88 lx 5.0 (california car if that matters). the stock harness connector is cut off and i dont know what wires go to what. i have my red and yellow wires from my cd player hooked up to a yellow/black wire from my mustang harness and my black wire from cd player hooked up to a black/white wire from my mustang harness. it gives the cd player power and the screen works and all and it turns off when i turn the key off like normal, but ive been trying to hook the speaker wires together and im not getting any sound. my thick red wire from my mustang harness is not hooked up to anything, is that what would power my speakers?? i know my speakers work cuz they worked with my previous radio. ive tried to look up radio wire diagrams online and none of the colors are matching up to what i have in my car.