well my right rear deck speaker went out last week so i tried to replace it. the old speaker had a recieving plug that hooked up to a light blue/yellow wire and a dark blue/yellow wire that had a plug on aswell. i have no earthly idea which one is + or - the left side has a brown/yellow wire and a striped brown/yellow wire, i was goin to replace those too. the new speakers i bought have a red and black + - reciever for bare wires. ive thus cut off the plugs on both wire sets and tried to put them on the same way they were on the old ones. ive now zapped my battery to oblivion and need help